74986840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{43597}}^1$

素因数の和:43651

約数の個数: 32

約数和(自身を含む): 172648080

約数和(自身を除く): 97661240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 43597, 87194, 174388, 217985, 348776, 435970, 871940, 1743880, 1874671, 3749342, 7498684, 9373355, 14997368, 18746710, 37493420, 74986840]

約数ペア:

[(1, 74986840), (2, 37493420), (4, 18746710), (5, 14997368), (8, 9373355), (10, 7498684), (20, 3749342), (40, 1874671), (43, 1743880), (86, 871940), (172, 435970), (215, 348776), (344, 217985), (430, 174388), (860, 87194), (1720, 43597)]