30521820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{72671}}^1$

素因数の和:72690

約数の個数: 48

約数和(自身を含む): 97671168

約数和(自身を除く): 67149348

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 72671, 145342, 218013, 290684, 363355, 436026, 508697, 726710, 872052, 1017394, 1090065, 1453420, 1526091, 2034788, 2180130, 2543485, 3052182, 4360260, 5086970, 6104364, 7630455, 10173940, 15260910, 30521820]

約数ペア:

[(1, 30521820), (2, 15260910), (3, 10173940), (4, 7630455), (5, 6104364), (6, 5086970), (7, 4360260), (10, 3052182), (12, 2543485), (14, 2180130), (15, 2034788), (20, 1526091), (21, 1453420), (28, 1090065), (30, 1017394), (35, 872052), (42, 726710), (60, 508697), (70, 436026), (84, 363355), (105, 290684), (140, 218013), (210, 145342), (420, 72671)]