20229320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:518

約数の個数: 64

約数和(自身を含む): 48988800

約数和(自身を除く): 28759480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 71, 85, 136, 142, 170, 284, 340, 355, 419, 568, 680, 710, 838, 1207, 1420, 1676, 2095, 2414, 2840, 3352, 4190, 4828, 6035, 7123, 8380, 9656, 12070, 14246, 16760, 24140, 28492, 29749, 35615, 48280, 56984, 59498, 71230, 118996, 142460, 148745, 237992, 284920, 297490, 505733, 594980, 1011466, 1189960, 2022932, 2528665, 4045864, 5057330, 10114660, 20229320]

約数ペア:

[(1, 20229320), (2, 10114660), (4, 5057330), (5, 4045864), (8, 2528665), (10, 2022932), (17, 1189960), (20, 1011466), (34, 594980), (40, 505733), (68, 297490), (71, 284920), (85, 237992), (136, 148745), (142, 142460), (170, 118996), (284, 71230), (340, 59498), (355, 56984), (419, 48280), (568, 35615), (680, 29749), (710, 28492), (838, 24140), (1207, 16760), (1420, 14246), (1676, 12070), (2095, 9656), (2414, 8380), (2840, 7123), (3352, 6035), (4190, 4828)]