256332800

素因数分解:

$2^{10}\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:97

約数の個数: 264

約数和(自身を含む): 731024640

約数和(自身を除く): 474691840

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, 128, 136, 152, 155, 160, 170, 190, 200, 248, 256, 272, 304, 310, 320, 323, 340, 380, 400, 425, 475, 496, 512, 527, 544, 589, 608, 620, 640, 646, 680, 760, 775, 800, 850, 950, 992, 1024, 1054, 1088, 1178, 1216, 1240, 1280, 1292, 1360, 1520, 1550, 1600, 1615, 1700, 1900, 1984, 2108, 2176, 2356, 2432, 2480, 2560, 2584, 2635, 2720, 2945, 3040, 3100, 3200, 3230, 3400, 3800, 3968, 4216, 4352, 4712, 4864, 4960, 5120, 5168, 5270, 5440, 5890, 6080, 6200, 6400, 6460, 6800, 7600, 7936, 8075, 8432, 8704, 9424, 9728, 9920, 10013, 10336, 10540, 10880, 11780, 12160, 12400, 12800, 12920, 13175, 13600, 14725, 15200, 15872, 16150, 16864, 17408, 18848, 19456, 19840, 20026, 20672, 21080, 21760, 23560, 24320, 24800, 25600, 25840, 26350, 27200, 29450, 30400, 31744, 32300, 33728, 37696, 39680, 40052, 41344, 42160, 43520, 47120, 48640, 49600, 50065, 51680, 52700, 54400, 58900, 60800, 64600, 67456, 75392, 79360, 80104, 82688, 84320, 87040, 94240, 97280, 99200, 100130, 103360, 105400, 108800, 117800, 121600, 129200, 134912, 150784, 158720, 160208, 165376, 168640, 188480, 198400, 200260, 206720, 210800, 217600, 235600, 243200, 250325, 258400, 269824, 301568, 320416, 330752, 337280, 376960, 396800, 400520, 413440, 421600, 435200, 471200, 486400, 500650, 516800, 539648, 603136, 640832, 674560, 753920, 793600, 801040, 826880, 843200, 942400, 1001300, 1033600, 1281664, 1349120, 1507840, 1602080, 1653760, 1686400, 1884800, 2002600, 2067200, 2563328, 2698240, 3015680, 3204160, 3372800, 3769600, 4005200, 4134400, 5126656, 6408320, 6745600, 7539200, 8010400, 8268800, 10253312, 12816640, 13491200, 15078400, 16020800, 25633280, 32041600, 51266560, 64083200, 128166400, 256332800]

約数ペア:

[(1, 256332800), (2, 128166400), (4, 64083200), (5, 51266560), (8, 32041600), (10, 25633280), (16, 16020800), (17, 15078400), (19, 13491200), (20, 12816640), (25, 10253312), (31, 8268800), (32, 8010400), (34, 7539200), (38, 6745600), (40, 6408320), (50, 5126656), (62, 4134400), (64, 4005200), (68, 3769600), (76, 3372800), (80, 3204160), (85, 3015680), (95, 2698240), (100, 2563328), (124, 2067200), (128, 2002600), (136, 1884800), (152, 1686400), (155, 1653760), (160, 1602080), (170, 1507840), (190, 1349120), (200, 1281664), (248, 1033600), (256, 1001300), (272, 942400), (304, 843200), (310, 826880), (320, 801040), (323, 793600), (340, 753920), (380, 674560), (400, 640832), (425, 603136), (475, 539648), (496, 516800), (512, 500650), (527, 486400), (544, 471200), (589, 435200), (608, 421600), (620, 413440), (640, 400520), (646, 396800), (680, 376960), (760, 337280), (775, 330752), (800, 320416), (850, 301568), (950, 269824), (992, 258400), (1024, 250325), (1054, 243200), (1088, 235600), (1178, 217600), (1216, 210800), (1240, 206720), (1280, 200260), (1292, 198400), (1360, 188480), (1520, 168640), (1550, 165376), (1600, 160208), (1615, 158720), (1700, 150784), (1900, 134912), (1984, 129200), (2108, 121600), (2176, 117800), (2356, 108800), (2432, 105400), (2480, 103360), (2560, 100130), (2584, 99200), (2635, 97280), (2720, 94240), (2945, 87040), (3040, 84320), (3100, 82688), (3200, 80104), (3230, 79360), (3400, 75392), (3800, 67456), (3968, 64600), (4216, 60800), (4352, 58900), (4712, 54400), (4864, 52700), (4960, 51680), (5120, 50065), (5168, 49600), (5270, 48640), (5440, 47120), (5890, 43520), (6080, 42160), (6200, 41344), (6400, 40052), (6460, 39680), (6800, 37696), (7600, 33728), (7936, 32300), (8075, 31744), (8432, 30400), (8704, 29450), (9424, 27200), (9728, 26350), (9920, 25840), (10013, 25600), (10336, 24800), (10540, 24320), (10880, 23560), (11780, 21760), (12160, 21080), (12400, 20672), (12800, 20026), (12920, 19840), (13175, 19456), (13600, 18848), (14725, 17408), (15200, 16864), (15872, 16150)]