2021000680

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{521}}^1\times {\mathrm{2621}}^1$

素因数の和:3190

約数の個数: 64

約数和(自身を含む): 4680899280

約数和(自身を除く): 2659898600

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 521, 740, 1042, 1480, 2084, 2605, 2621, 4168, 5210, 5242, 10420, 10484, 13105, 19277, 20840, 20968, 26210, 38554, 52420, 77108, 96385, 96977, 104840, 154216, 192770, 193954, 385540, 387908, 484885, 771080, 775816, 969770, 1365541, 1939540, 2731082, 3879080, 5462164, 6827705, 10924328, 13655410, 27310820, 50525017, 54621640, 101050034, 202100068, 252625085, 404200136, 505250170, 1010500340, 2021000680]

約数ペア:

[(1, 2021000680), (2, 1010500340), (4, 505250170), (5, 404200136), (8, 252625085), (10, 202100068), (20, 101050034), (37, 54621640), (40, 50525017), (74, 27310820), (148, 13655410), (185, 10924328), (296, 6827705), (370, 5462164), (521, 3879080), (740, 2731082), (1042, 1939540), (1480, 1365541), (2084, 969770), (2605, 775816), (2621, 771080), (4168, 484885), (5210, 387908), (5242, 385540), (10420, 193954), (10484, 192770), (13105, 154216), (19277, 104840), (20840, 96977), (20968, 96385), (26210, 77108), (38554, 52420)]