281022040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{1951}}^1$

素因数の和:2252

約数の個数: 64

約数和(自身を含む): 683746560

約数和(自身を除く): 402724520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 277, 520, 554, 1108, 1385, 1951, 2216, 2770, 3601, 3902, 5540, 7202, 7804, 9755, 11080, 14404, 15608, 18005, 19510, 25363, 28808, 36010, 39020, 50726, 72020, 78040, 101452, 126815, 144040, 202904, 253630, 507260, 540427, 1014520, 1080854, 2161708, 2702135, 4323416, 5404270, 7025551, 10808540, 14051102, 21617080, 28102204, 35127755, 56204408, 70255510, 140511020, 281022040]

約数ペア:

[(1, 281022040), (2, 140511020), (4, 70255510), (5, 56204408), (8, 35127755), (10, 28102204), (13, 21617080), (20, 14051102), (26, 10808540), (40, 7025551), (52, 5404270), (65, 4323416), (104, 2702135), (130, 2161708), (260, 1080854), (277, 1014520), (520, 540427), (554, 507260), (1108, 253630), (1385, 202904), (1951, 144040), (2216, 126815), (2770, 101452), (3601, 78040), (3902, 72020), (5540, 50726), (7202, 39020), (7804, 36010), (9755, 28808), (11080, 25363), (14404, 19510), (15608, 18005)]