8219020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{503}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 18627840

約数和(自身を除く): 10408820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 215, 380, 430, 503, 817, 860, 1006, 1634, 2012, 2515, 3268, 4085, 5030, 8170, 9557, 10060, 16340, 19114, 21629, 38228, 43258, 47785, 86516, 95570, 108145, 191140, 216290, 410951, 432580, 821902, 1643804, 2054755, 4109510, 8219020]

約数ペア:

[(1, 8219020), (2, 4109510), (4, 2054755), (5, 1643804), (10, 821902), (19, 432580), (20, 410951), (38, 216290), (43, 191140), (76, 108145), (86, 95570), (95, 86516), (172, 47785), (190, 43258), (215, 38228), (380, 21629), (430, 19114), (503, 16340), (817, 10060), (860, 9557), (1006, 8170), (1634, 5030), (2012, 4085), (2515, 3268)]