72407020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{1663}}^1$

素因数の和:1990

約数の個数: 48

約数和(自身を含む): 174440448

約数和(自身を除く): 102033428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 311, 622, 1244, 1555, 1663, 2177, 3110, 3326, 4354, 6220, 6652, 8315, 8708, 10885, 11641, 16630, 21770, 23282, 33260, 43540, 46564, 58205, 116410, 232820, 517193, 1034386, 2068772, 2585965, 3620351, 5171930, 7240702, 10343860, 14481404, 18101755, 36203510, 72407020]

約数ペア:

[(1, 72407020), (2, 36203510), (4, 18101755), (5, 14481404), (7, 10343860), (10, 7240702), (14, 5171930), (20, 3620351), (28, 2585965), (35, 2068772), (70, 1034386), (140, 517193), (311, 232820), (622, 116410), (1244, 58205), (1555, 46564), (1663, 43540), (2177, 33260), (3110, 23282), (3326, 21770), (4354, 16630), (6220, 11641), (6652, 10885), (8315, 8708)]