12816640

素因数分解:

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

素因数の和:88

約数の個数: 144

約数和(自身を含む): 35320320

約数和(自身を除く): 22503680

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 31, 32, 34, 38, 40, 62, 64, 68, 76, 80, 85, 95, 124, 128, 136, 152, 155, 160, 170, 190, 248, 256, 272, 304, 310, 320, 323, 340, 380, 496, 527, 544, 589, 608, 620, 640, 646, 680, 760, 992, 1054, 1088, 1178, 1216, 1240, 1280, 1292, 1360, 1520, 1615, 1984, 2108, 2176, 2356, 2432, 2480, 2584, 2635, 2720, 2945, 3040, 3230, 3968, 4216, 4352, 4712, 4864, 4960, 5168, 5270, 5440, 5890, 6080, 6460, 7936, 8432, 9424, 9920, 10013, 10336, 10540, 10880, 11780, 12160, 12920, 16864, 18848, 19840, 20026, 20672, 21080, 21760, 23560, 24320, 25840, 33728, 37696, 39680, 40052, 41344, 42160, 47120, 50065, 51680, 67456, 75392, 80104, 82688, 84320, 94240, 100130, 103360, 134912, 150784, 160208, 168640, 188480, 200260, 206720, 320416, 337280, 376960, 400520, 413440, 640832, 674560, 753920, 801040, 1281664, 1602080, 2563328, 3204160, 6408320, 12816640]

約数ペア:

[(1, 12816640), (2, 6408320), (4, 3204160), (5, 2563328), (8, 1602080), (10, 1281664), (16, 801040), (17, 753920), (19, 674560), (20, 640832), (31, 413440), (32, 400520), (34, 376960), (38, 337280), (40, 320416), (62, 206720), (64, 200260), (68, 188480), (76, 168640), (80, 160208), (85, 150784), (95, 134912), (124, 103360), (128, 100130), (136, 94240), (152, 84320), (155, 82688), (160, 80104), (170, 75392), (190, 67456), (248, 51680), (256, 50065), (272, 47120), (304, 42160), (310, 41344), (320, 40052), (323, 39680), (340, 37696), (380, 33728), (496, 25840), (527, 24320), (544, 23560), (589, 21760), (608, 21080), (620, 20672), (640, 20026), (646, 19840), (680, 18848), (760, 16864), (992, 12920), (1054, 12160), (1088, 11780), (1178, 10880), (1216, 10540), (1240, 10336), (1280, 10013), (1292, 9920), (1360, 9424), (1520, 8432), (1615, 7936), (1984, 6460), (2108, 6080), (2176, 5890), (2356, 5440), (2432, 5270), (2480, 5168), (2584, 4960), (2635, 4864), (2720, 4712), (2945, 4352), (3040, 4216), (3230, 3968)]