2019988840

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{233}}^1\times {\mathrm{2969}}^1$

素因数の和:3286

約数の個数: 64

約数和(自身を含む): 4628566800

約数和(自身を除く): 2608577960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 233, 292, 365, 466, 584, 730, 932, 1165, 1460, 1864, 2330, 2920, 2969, 4660, 5938, 9320, 11876, 14845, 17009, 23752, 29690, 34018, 59380, 68036, 85045, 118760, 136072, 170090, 216737, 340180, 433474, 680360, 691777, 866948, 1083685, 1383554, 1733896, 2167370, 2767108, 3458885, 4334740, 5534216, 6917770, 8669480, 13835540, 27671080, 50499721, 100999442, 201998884, 252498605, 403997768, 504997210, 1009994420, 2019988840]

約数ペア:

[(1, 2019988840), (2, 1009994420), (4, 504997210), (5, 403997768), (8, 252498605), (10, 201998884), (20, 100999442), (40, 50499721), (73, 27671080), (146, 13835540), (233, 8669480), (292, 6917770), (365, 5534216), (466, 4334740), (584, 3458885), (730, 2767108), (932, 2167370), (1165, 1733896), (1460, 1383554), (1864, 1083685), (2330, 866948), (2920, 691777), (2969, 680360), (4660, 433474), (5938, 340180), (9320, 216737), (11876, 170090), (14845, 136072), (17009, 118760), (23752, 85045), (29690, 68036), (34018, 59380)]