77906540

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{577}}^1$

素因数の和:786

約数の個数: 48

約数和(自身を含む): 168766752

約数和(自身を除く): 90860212

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 157, 172, 215, 314, 430, 577, 628, 785, 860, 1154, 1570, 2308, 2885, 3140, 5770, 6751, 11540, 13502, 24811, 27004, 33755, 49622, 67510, 90589, 99244, 124055, 135020, 181178, 248110, 362356, 452945, 496220, 905890, 1811780, 3895327, 7790654, 15581308, 19476635, 38953270, 77906540]

約数ペア:

[(1, 77906540), (2, 38953270), (4, 19476635), (5, 15581308), (10, 7790654), (20, 3895327), (43, 1811780), (86, 905890), (157, 496220), (172, 452945), (215, 362356), (314, 248110), (430, 181178), (577, 135020), (628, 124055), (785, 99244), (860, 90589), (1154, 67510), (1570, 49622), (2308, 33755), (2885, 27004), (3140, 24811), (5770, 13502), (6751, 11540)]