20167984

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1399}}^1$

素因数の和:1477

約数の個数: 40

約数和(自身を含む): 42184800

約数和(自身を除く): 22016816

約数列:

[1, 2, 4, 8, 16, 17, 34, 53, 68, 106, 136, 212, 272, 424, 848, 901, 1399, 1802, 2798, 3604, 5596, 7208, 11192, 14416, 22384, 23783, 47566, 74147, 95132, 148294, 190264, 296588, 380528, 593176, 1186352, 1260499, 2520998, 5041996, 10083992, 20167984]

約数ペア:

[(1, 20167984), (2, 10083992), (4, 5041996), (8, 2520998), (16, 1260499), (17, 1186352), (34, 593176), (53, 380528), (68, 296588), (106, 190264), (136, 148294), (212, 95132), (272, 74147), (424, 47566), (848, 23783), (901, 22384), (1399, 14416), (1802, 11192), (2798, 7208), (3604, 5596)]