19132020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{677}}^1$

素因数の和:849

約数の個数: 72

約数和(自身を含む): 58489704

約数和(自身を除く): 39357684

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 157, 180, 314, 471, 628, 677, 785, 942, 1354, 1413, 1570, 1884, 2031, 2355, 2708, 2826, 3140, 3385, 4062, 4710, 5652, 6093, 6770, 7065, 8124, 9420, 10155, 12186, 13540, 14130, 20310, 24372, 28260, 30465, 40620, 60930, 106289, 121860, 212578, 318867, 425156, 531445, 637734, 956601, 1062890, 1275468, 1594335, 1913202, 2125780, 3188670, 3826404, 4783005, 6377340, 9566010, 19132020]

約数ペア:

[(1, 19132020), (2, 9566010), (3, 6377340), (4, 4783005), (5, 3826404), (6, 3188670), (9, 2125780), (10, 1913202), (12, 1594335), (15, 1275468), (18, 1062890), (20, 956601), (30, 637734), (36, 531445), (45, 425156), (60, 318867), (90, 212578), (157, 121860), (180, 106289), (314, 60930), (471, 40620), (628, 30465), (677, 28260), (785, 24372), (942, 20310), (1354, 14130), (1413, 13540), (1570, 12186), (1884, 10155), (2031, 9420), (2355, 8124), (2708, 7065), (2826, 6770), (3140, 6093), (3385, 5652), (4062, 4710)]