256793985

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{28111}}^1$

素因数の和:28158

約数の個数: 48

約数和(自身を含む): 526256640

約数和(自身を除く): 269462655

約数列:

[1, 3, 5, 7, 9, 15, 21, 29, 35, 45, 63, 87, 105, 145, 203, 261, 315, 435, 609, 1015, 1305, 1827, 3045, 9135, 28111, 84333, 140555, 196777, 252999, 421665, 590331, 815219, 983885, 1264995, 1770993, 2445657, 2951655, 4076095, 5706533, 7336971, 8854965, 12228285, 17119599, 28532665, 36684855, 51358797, 85597995, 256793985]

約数ペア:

[(1, 256793985), (3, 85597995), (5, 51358797), (7, 36684855), (9, 28532665), (15, 17119599), (21, 12228285), (29, 8854965), (35, 7336971), (45, 5706533), (63, 4076095), (87, 2951655), (105, 2445657), (145, 1770993), (203, 1264995), (261, 983885), (315, 815219), (435, 590331), (609, 421665), (1015, 252999), (1305, 196777), (1827, 140555), (3045, 84333), (9135, 28111)]