678477440

素因数分解:

$2^7\times 5^1\times {\mathrm{523}}^1\times {\mathrm{2027}}^1$

素因数の和:2569

約数の個数: 64

約数和(自身を含む): 1625888160

約数和(自身を除く): 947410720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 523, 640, 1046, 2027, 2092, 2615, 4054, 4184, 5230, 8108, 8368, 10135, 10460, 16216, 16736, 20270, 20920, 32432, 33472, 40540, 41840, 64864, 66944, 81080, 83680, 129728, 162160, 167360, 259456, 324320, 334720, 648640, 1060121, 1297280, 2120242, 4240484, 5300605, 8480968, 10601210, 16961936, 21202420, 33923872, 42404840, 67847744, 84809680, 135695488, 169619360, 339238720, 678477440]

約数ペア:

[(1, 678477440), (2, 339238720), (4, 169619360), (5, 135695488), (8, 84809680), (10, 67847744), (16, 42404840), (20, 33923872), (32, 21202420), (40, 16961936), (64, 10601210), (80, 8480968), (128, 5300605), (160, 4240484), (320, 2120242), (523, 1297280), (640, 1060121), (1046, 648640), (2027, 334720), (2092, 324320), (2615, 259456), (4054, 167360), (4184, 162160), (5230, 129728), (8108, 83680), (8368, 81080), (10135, 66944), (10460, 64864), (16216, 41840), (16736, 40540), (20270, 33472), (20920, 32432)]