400438064

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{148091}}^1$

素因数の和:148125

約数の個数: 30

約数和(自身を含む): 840125916

約数和(自身を除く): 439687852

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 169, 208, 338, 676, 1352, 2704, 148091, 296182, 592364, 1184728, 1925183, 2369456, 3850366, 7700732, 15401464, 25027379, 30802928, 50054758, 100109516, 200219032, 400438064]

約数ペア:

[(1, 400438064), (2, 200219032), (4, 100109516), (8, 50054758), (13, 30802928), (16, 25027379), (26, 15401464), (52, 7700732), (104, 3850366), (169, 2369456), (208, 1925183), (338, 1184728), (676, 592364), (1352, 296182), (2704, 148091)]