320416000

素因数分解:

$2^8\times 5^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:98

約数の個数: 288

約数和(自身を含む): 918328320

約数和(自身を除く): 597912320

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 25, 31, 32, 34, 38, 40, 50, 62, 64, 68, 76, 80, 85, 95, 100, 124, 125, 128, 136, 152, 155, 160, 170, 190, 200, 248, 250, 256, 272, 304, 310, 320, 323, 340, 380, 400, 425, 475, 496, 500, 527, 544, 589, 608, 620, 640, 646, 680, 760, 775, 800, 850, 950, 992, 1000, 1054, 1088, 1178, 1216, 1240, 1280, 1292, 1360, 1520, 1550, 1600, 1615, 1700, 1900, 1984, 2000, 2108, 2125, 2176, 2356, 2375, 2432, 2480, 2584, 2635, 2720, 2945, 3040, 3100, 3200, 3230, 3400, 3800, 3875, 3968, 4000, 4216, 4250, 4352, 4712, 4750, 4864, 4960, 5168, 5270, 5440, 5890, 6080, 6200, 6400, 6460, 6800, 7600, 7750, 7936, 8000, 8075, 8432, 8500, 9424, 9500, 9920, 10013, 10336, 10540, 10880, 11780, 12160, 12400, 12920, 13175, 13600, 14725, 15200, 15500, 16000, 16150, 16864, 17000, 18848, 19000, 19840, 20026, 20672, 21080, 21760, 23560, 24320, 24800, 25840, 26350, 27200, 29450, 30400, 31000, 32000, 32300, 33728, 34000, 37696, 38000, 39680, 40052, 40375, 41344, 42160, 47120, 49600, 50065, 51680, 52700, 54400, 58900, 60800, 62000, 64600, 65875, 67456, 68000, 73625, 75392, 76000, 80104, 80750, 82688, 84320, 94240, 99200, 100130, 103360, 105400, 108800, 117800, 121600, 124000, 129200, 131750, 134912, 136000, 147250, 150784, 152000, 160208, 161500, 168640, 188480, 198400, 200260, 206720, 210800, 235600, 248000, 250325, 258400, 263500, 272000, 294500, 304000, 320416, 323000, 337280, 376960, 400520, 413440, 421600, 471200, 496000, 500650, 516800, 527000, 544000, 589000, 608000, 640832, 646000, 674560, 753920, 801040, 843200, 942400, 992000, 1001300, 1033600, 1054000, 1178000, 1251625, 1281664, 1292000, 1602080, 1686400, 1884800, 2002600, 2067200, 2108000, 2356000, 2503250, 2563328, 2584000, 3204160, 3372800, 3769600, 4005200, 4216000, 4712000, 5006500, 5168000, 6408320, 8010400, 8432000, 9424000, 10013000, 10336000, 12816640, 16020800, 16864000, 18848000, 20026000, 32041600, 40052000, 64083200, 80104000, 160208000, 320416000]

約数ペア:

[(1, 320416000), (2, 160208000), (4, 80104000), (5, 64083200), (8, 40052000), (10, 32041600), (16, 20026000), (17, 18848000), (19, 16864000), (20, 16020800), (25, 12816640), (31, 10336000), (32, 10013000), (34, 9424000), (38, 8432000), (40, 8010400), (50, 6408320), (62, 5168000), (64, 5006500), (68, 4712000), (76, 4216000), (80, 4005200), (85, 3769600), (95, 3372800), (100, 3204160), (124, 2584000), (125, 2563328), (128, 2503250), (136, 2356000), (152, 2108000), (155, 2067200), (160, 2002600), (170, 1884800), (190, 1686400), (200, 1602080), (248, 1292000), (250, 1281664), (256, 1251625), (272, 1178000), (304, 1054000), (310, 1033600), (320, 1001300), (323, 992000), (340, 942400), (380, 843200), (400, 801040), (425, 753920), (475, 674560), (496, 646000), (500, 640832), (527, 608000), (544, 589000), (589, 544000), (608, 527000), (620, 516800), (640, 500650), (646, 496000), (680, 471200), (760, 421600), (775, 413440), (800, 400520), (850, 376960), (950, 337280), (992, 323000), (1000, 320416), (1054, 304000), (1088, 294500), (1178, 272000), (1216, 263500), (1240, 258400), (1280, 250325), (1292, 248000), (1360, 235600), (1520, 210800), (1550, 206720), (1600, 200260), (1615, 198400), (1700, 188480), (1900, 168640), (1984, 161500), (2000, 160208), (2108, 152000), (2125, 150784), (2176, 147250), (2356, 136000), (2375, 134912), (2432, 131750), (2480, 129200), (2584, 124000), (2635, 121600), (2720, 117800), (2945, 108800), (3040, 105400), (3100, 103360), (3200, 100130), (3230, 99200), (3400, 94240), (3800, 84320), (3875, 82688), (3968, 80750), (4000, 80104), (4216, 76000), (4250, 75392), (4352, 73625), (4712, 68000), (4750, 67456), (4864, 65875), (4960, 64600), (5168, 62000), (5270, 60800), (5440, 58900), (5890, 54400), (6080, 52700), (6200, 51680), (6400, 50065), (6460, 49600), (6800, 47120), (7600, 42160), (7750, 41344), (7936, 40375), (8000, 40052), (8075, 39680), (8432, 38000), (8500, 37696), (9424, 34000), (9500, 33728), (9920, 32300), (10013, 32000), (10336, 31000), (10540, 30400), (10880, 29450), (11780, 27200), (12160, 26350), (12400, 25840), (12920, 24800), (13175, 24320), (13600, 23560), (14725, 21760), (15200, 21080), (15500, 20672), (16000, 20026), (16150, 19840), (16864, 19000), (17000, 18848)]