90255780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1289}}^1$

素因数の和:1693

約数の個数: 72

約数和(自身を含む): 274692600

約数和(自身を除く): 184436820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 389, 778, 1167, 1289, 1556, 1945, 2334, 2578, 3501, 3867, 3890, 4668, 5156, 5835, 6445, 7002, 7734, 7780, 11601, 11670, 12890, 14004, 15468, 17505, 19335, 23202, 23340, 25780, 35010, 38670, 46404, 58005, 70020, 77340, 116010, 232020, 501421, 1002842, 1504263, 2005684, 2507105, 3008526, 4512789, 5014210, 6017052, 7521315, 9025578, 10028420, 15042630, 18051156, 22563945, 30085260, 45127890, 90255780]

約数ペア:

[(1, 90255780), (2, 45127890), (3, 30085260), (4, 22563945), (5, 18051156), (6, 15042630), (9, 10028420), (10, 9025578), (12, 7521315), (15, 6017052), (18, 5014210), (20, 4512789), (30, 3008526), (36, 2507105), (45, 2005684), (60, 1504263), (90, 1002842), (180, 501421), (389, 232020), (778, 116010), (1167, 77340), (1289, 70020), (1556, 58005), (1945, 46404), (2334, 38670), (2578, 35010), (3501, 25780), (3867, 23340), (3890, 23202), (4668, 19335), (5156, 17505), (5835, 15468), (6445, 14004), (7002, 12890), (7734, 11670), (7780, 11601)]