64969360

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{42743}}^1$

素因数の和:42775

約数の個数: 40

約数和(自身を含む): 159007680

約数和(自身を除く): 94038320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 42743, 85486, 170972, 213715, 341944, 427430, 683888, 812117, 854860, 1624234, 1709720, 3248468, 3419440, 4060585, 6496936, 8121170, 12993872, 16242340, 32484680, 64969360]

約数ペア:

[(1, 64969360), (2, 32484680), (4, 16242340), (5, 12993872), (8, 8121170), (10, 6496936), (16, 4060585), (19, 3419440), (20, 3248468), (38, 1709720), (40, 1624234), (76, 854860), (80, 812117), (95, 683888), (152, 427430), (190, 341944), (304, 213715), (380, 170972), (760, 85486), (1520, 42743)]