81656940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{9791}}^1$

素因数の和:9942

約数の個数: 48

約数和(自身を含む): 230307840

約数和(自身を除く): 148650900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 139, 278, 417, 556, 695, 834, 1390, 1668, 2085, 2780, 4170, 8340, 9791, 19582, 29373, 39164, 48955, 58746, 97910, 117492, 146865, 195820, 293730, 587460, 1360949, 2721898, 4082847, 5443796, 6804745, 8165694, 13609490, 16331388, 20414235, 27218980, 40828470, 81656940]

約数ペア:

[(1, 81656940), (2, 40828470), (3, 27218980), (4, 20414235), (5, 16331388), (6, 13609490), (10, 8165694), (12, 6804745), (15, 5443796), (20, 4082847), (30, 2721898), (60, 1360949), (139, 587460), (278, 293730), (417, 195820), (556, 146865), (695, 117492), (834, 97910), (1390, 58746), (1668, 48955), (2085, 39164), (2780, 29373), (4170, 19582), (8340, 9791)]