19702720

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2677}}^1$

素因数の和:2717

約数の個数: 56

約数和(自身を含む): 48975264

約数和(自身を除く): 29272544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 160, 184, 230, 320, 368, 460, 736, 920, 1472, 1840, 2677, 3680, 5354, 7360, 10708, 13385, 21416, 26770, 42832, 53540, 61571, 85664, 107080, 123142, 171328, 214160, 246284, 307855, 428320, 492568, 615710, 856640, 985136, 1231420, 1970272, 2462840, 3940544, 4925680, 9851360, 19702720]

約数ペア:

[(1, 19702720), (2, 9851360), (4, 4925680), (5, 3940544), (8, 2462840), (10, 1970272), (16, 1231420), (20, 985136), (23, 856640), (32, 615710), (40, 492568), (46, 428320), (64, 307855), (80, 246284), (92, 214160), (115, 171328), (160, 123142), (184, 107080), (230, 85664), (320, 61571), (368, 53540), (460, 42832), (736, 26770), (920, 21416), (1472, 13385), (1840, 10708), (2677, 7360), (3680, 5354)]