42758680

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{167}}^1\times {\mathrm{173}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 99973440

約数和(自身を除く): 57214760

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 167, 173, 185, 296, 334, 346, 370, 668, 692, 740, 835, 865, 1336, 1384, 1480, 1670, 1730, 3340, 3460, 6179, 6401, 6680, 6920, 12358, 12802, 24716, 25604, 28891, 30895, 32005, 49432, 51208, 57782, 61790, 64010, 115564, 123580, 128020, 144455, 231128, 247160, 256040, 288910, 577820, 1068967, 1155640, 2137934, 4275868, 5344835, 8551736, 10689670, 21379340, 42758680]

約数ペア:

[(1, 42758680), (2, 21379340), (4, 10689670), (5, 8551736), (8, 5344835), (10, 4275868), (20, 2137934), (37, 1155640), (40, 1068967), (74, 577820), (148, 288910), (167, 256040), (173, 247160), (185, 231128), (296, 144455), (334, 128020), (346, 123580), (370, 115564), (668, 64010), (692, 61790), (740, 57782), (835, 51208), (865, 49432), (1336, 32005), (1384, 30895), (1480, 28891), (1670, 25604), (1730, 24716), (3340, 12802), (3460, 12358), (6179, 6920), (6401, 6680)]