128761730

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{509}}^1\times {\mathrm{617}}^1$

素因数の和:1174

約数の個数: 32

約数和(自身を含む): 238276080

約数和(自身を除く): 109514350

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 509, 617, 1018, 1234, 2545, 3085, 5090, 6170, 20869, 25297, 41738, 50594, 104345, 126485, 208690, 252970, 314053, 628106, 1570265, 3140530, 12876173, 25752346, 64380865, 128761730]

約数ペア:

[(1, 128761730), (2, 64380865), (5, 25752346), (10, 12876173), (41, 3140530), (82, 1570265), (205, 628106), (410, 314053), (509, 252970), (617, 208690), (1018, 126485), (1234, 104345), (2545, 50594), (3085, 41738), (5090, 25297), (6170, 20869)]