289300520

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{249397}}^1$

素因数の和:249437

約数の個数: 32

約数和(自身を含む): 673374600

約数和(自身を除く): 384074080

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 249397, 498794, 997588, 1246985, 1995176, 2493970, 4987940, 7232513, 9975880, 14465026, 28930052, 36162565, 57860104, 72325130, 144650260, 289300520]

約数ペア:

[(1, 289300520), (2, 144650260), (4, 72325130), (5, 57860104), (8, 36162565), (10, 28930052), (20, 14465026), (29, 9975880), (40, 7232513), (58, 4987940), (116, 2493970), (145, 1995176), (232, 1246985), (290, 997588), (580, 498794), (1160, 249397)]