720447

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{29}}^1$

素因数の和:72

約数の個数: 36

約数和(自身を含む): 1251720

約数和(自身を除く): 531273

約数列:

[1, 3, 7, 13, 21, 29, 39, 49, 87, 91, 147, 169, 203, 273, 377, 507, 609, 637, 1131, 1183, 1421, 1911, 2639, 3549, 4263, 4901, 7917, 8281, 14703, 18473, 24843, 34307, 55419, 102921, 240149, 720447]

約数ペア:

[(1, 720447), (3, 240149), (7, 102921), (13, 55419), (21, 34307), (29, 24843), (39, 18473), (49, 14703), (87, 8281), (91, 7917), (147, 4901), (169, 4263), (203, 3549), (273, 2639), (377, 1911), (507, 1421), (609, 1183), (637, 1131)]