20734510

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1789}}^1$

素因数の和:1876

約数の個数: 32

約数和(自身を含む): 39952800

約数和(自身を除く): 19218290

約数列:

[1, 2, 5, 10, 19, 38, 61, 95, 122, 190, 305, 610, 1159, 1789, 2318, 3578, 5795, 8945, 11590, 17890, 33991, 67982, 109129, 169955, 218258, 339910, 545645, 1091290, 2073451, 4146902, 10367255, 20734510]

約数ペア:

[(1, 20734510), (2, 10367255), (5, 4146902), (10, 2073451), (19, 1091290), (38, 545645), (61, 339910), (95, 218258), (122, 169955), (190, 109129), (305, 67982), (610, 33991), (1159, 17890), (1789, 11590), (2318, 8945), (3578, 5795)]