20906700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{227}}^1\times {\mathrm{307}}^1$

素因数の和:551

約数の個数: 72

約数和(自身を含む): 60954432

約数和(自身を除く): 40047732

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 227, 300, 307, 454, 614, 681, 908, 921, 1135, 1228, 1362, 1535, 1842, 2270, 2724, 3070, 3405, 3684, 4540, 4605, 5675, 6140, 6810, 7675, 9210, 11350, 13620, 15350, 17025, 18420, 22700, 23025, 30700, 34050, 46050, 68100, 69689, 92100, 139378, 209067, 278756, 348445, 418134, 696890, 836268, 1045335, 1393780, 1742225, 2090670, 3484450, 4181340, 5226675, 6968900, 10453350, 20906700]

約数ペア:

[(1, 20906700), (2, 10453350), (3, 6968900), (4, 5226675), (5, 4181340), (6, 3484450), (10, 2090670), (12, 1742225), (15, 1393780), (20, 1045335), (25, 836268), (30, 696890), (50, 418134), (60, 348445), (75, 278756), (100, 209067), (150, 139378), (227, 92100), (300, 69689), (307, 68100), (454, 46050), (614, 34050), (681, 30700), (908, 23025), (921, 22700), (1135, 18420), (1228, 17025), (1362, 15350), (1535, 13620), (1842, 11350), (2270, 9210), (2724, 7675), (3070, 6810), (3405, 6140), (3684, 5675), (4540, 4605)]