15980140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3823}}^1$

素因数の和:3862

約数の個数: 48

約数和(自身を含む): 38545920

約数和(自身を除く): 22565780

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 3823, 4180, 7646, 15292, 19115, 38230, 42053, 72637, 76460, 84106, 145274, 168212, 210265, 290548, 363185, 420530, 726370, 799007, 841060, 1452740, 1598014, 3196028, 3995035, 7990070, 15980140]

約数ペア:

[(1, 15980140), (2, 7990070), (4, 3995035), (5, 3196028), (10, 1598014), (11, 1452740), (19, 841060), (20, 799007), (22, 726370), (38, 420530), (44, 363185), (55, 290548), (76, 210265), (95, 168212), (110, 145274), (190, 84106), (209, 76460), (220, 72637), (380, 42053), (418, 38230), (836, 19115), (1045, 15292), (2090, 7646), (3823, 4180)]