1640590064

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{21821}}^1$

素因数の和:21993

約数の個数: 40

約数和(自身を含む): 3290408448

約数和(自身を除く): 1649818384

約数列:

[1, 2, 4, 8, 16, 37, 74, 127, 148, 254, 296, 508, 592, 1016, 2032, 4699, 9398, 18796, 21821, 37592, 43642, 75184, 87284, 174568, 349136, 807377, 1614754, 2771267, 3229508, 5542534, 6459016, 11085068, 12918032, 22170136, 44340272, 102536879, 205073758, 410147516, 820295032, 1640590064]

約数ペア:

[(1, 1640590064), (2, 820295032), (4, 410147516), (8, 205073758), (16, 102536879), (37, 44340272), (74, 22170136), (127, 12918032), (148, 11085068), (254, 6459016), (296, 5542534), (508, 3229508), (592, 2771267), (1016, 1614754), (2032, 807377), (4699, 349136), (9398, 174568), (18796, 87284), (21821, 75184), (37592, 43642)]