20476815

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{599}}^1$

素因数の和:703

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 13737585

約数列:

[1, 3, 5, 15, 43, 53, 129, 159, 215, 265, 599, 645, 795, 1797, 2279, 2995, 6837, 8985, 11395, 25757, 31747, 34185, 77271, 95241, 128785, 158735, 386355, 476205, 1365121, 4095363, 6825605, 20476815]

約数ペア:

[(1, 20476815), (3, 6825605), (5, 4095363), (15, 1365121), (43, 476205), (53, 386355), (129, 158735), (159, 128785), (215, 95241), (265, 77271), (599, 34185), (645, 31747), (795, 25757), (1797, 11395), (2279, 8985), (2995, 6837)]