31459660

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{233}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 68324256

約数和(自身を除く): 36864596

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 157, 172, 215, 233, 314, 430, 466, 628, 785, 860, 932, 1165, 1570, 2330, 3140, 4660, 6751, 10019, 13502, 20038, 27004, 33755, 36581, 40076, 50095, 67510, 73162, 100190, 135020, 146324, 182905, 200380, 365810, 731620, 1572983, 3145966, 6291932, 7864915, 15729830, 31459660]

約数ペア:

[(1, 31459660), (2, 15729830), (4, 7864915), (5, 6291932), (10, 3145966), (20, 1572983), (43, 731620), (86, 365810), (157, 200380), (172, 182905), (215, 146324), (233, 135020), (314, 100190), (430, 73162), (466, 67510), (628, 50095), (785, 40076), (860, 36581), (932, 33755), (1165, 27004), (1570, 20038), (2330, 13502), (3140, 10019), (4660, 6751)]