81349550

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{241}}^1$

素因数の和:453

約数の個数: 48

約数和(自身を含む): 156461712

約数和(自身を除く): 75112162

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 157, 215, 241, 314, 430, 482, 785, 1075, 1205, 1570, 2150, 2410, 3925, 6025, 6751, 7850, 10363, 12050, 13502, 20726, 33755, 37837, 51815, 67510, 75674, 103630, 168775, 189185, 259075, 337550, 378370, 518150, 945925, 1626991, 1891850, 3253982, 8134955, 16269910, 40674775, 81349550]

約数ペア:

[(1, 81349550), (2, 40674775), (5, 16269910), (10, 8134955), (25, 3253982), (43, 1891850), (50, 1626991), (86, 945925), (157, 518150), (215, 378370), (241, 337550), (314, 259075), (430, 189185), (482, 168775), (785, 103630), (1075, 75674), (1205, 67510), (1570, 51815), (2150, 37837), (2410, 33755), (3925, 20726), (6025, 13502), (6751, 12050), (7850, 10363)]