400452

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1$

素因数の和:188

約数の個数: 48

約数和(自身を含む): 1072512

約数和(自身を除く): 672060

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 26, 34, 39, 51, 52, 68, 78, 102, 151, 156, 204, 221, 302, 442, 453, 604, 663, 884, 906, 1326, 1812, 1963, 2567, 2652, 3926, 5134, 5889, 7701, 7852, 10268, 11778, 15402, 23556, 30804, 33371, 66742, 100113, 133484, 200226, 400452]

約数ペア:

[(1, 400452), (2, 200226), (3, 133484), (4, 100113), (6, 66742), (12, 33371), (13, 30804), (17, 23556), (26, 15402), (34, 11778), (39, 10268), (51, 7852), (52, 7701), (68, 5889), (78, 5134), (102, 3926), (151, 2652), (156, 2567), (204, 1963), (221, 1812), (302, 1326), (442, 906), (453, 884), (604, 663)]