1781795240

素因数分解:

$2^3\times 5^1\times {\mathrm{10459}}^1\times {\mathrm{4259}}^1$

素因数の和:14729

約数の個数: 32

約数和(自身を含む): 4010364000

約数和(自身を除く): 2228568760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4259, 8518, 10459, 17036, 20918, 21295, 34072, 41836, 42590, 52295, 83672, 85180, 104590, 170360, 209180, 418360, 44544881, 89089762, 178179524, 222724405, 356359048, 445448810, 890897620, 1781795240]

約数ペア:

[(1, 1781795240), (2, 890897620), (4, 445448810), (5, 356359048), (8, 222724405), (10, 178179524), (20, 89089762), (40, 44544881), (4259, 418360), (8518, 209180), (10459, 170360), (17036, 104590), (20918, 85180), (21295, 83672), (34072, 52295), (41836, 42590)]