220848180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{1249}}^1$

素因数の和:1689

約数の個数: 96

約数和(自身を含む): 708960000

約数和(自身を除く): 488111820

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, 421, 842, 1249, 1263, 1684, 2105, 2498, 2526, 2947, 3747, 4210, 4996, 5052, 5894, 6245, 6315, 7494, 8420, 8743, 8841, 11788, 12490, 12630, 14735, 14988, 17486, 17682, 18735, 24980, 25260, 26229, 29470, 34972, 35364, 37470, 43715, 44205, 52458, 58940, 74940, 87430, 88410, 104916, 131145, 174860, 176820, 262290, 524580, 525829, 1051658, 1577487, 2103316, 2629145, 3154974, 3680803, 5258290, 6309948, 7361606, 7887435, 10516580, 11042409, 14723212, 15774870, 18404015, 22084818, 31549740, 36808030, 44169636, 55212045, 73616060, 110424090, 220848180]

約数ペア:

[(1, 220848180), (2, 110424090), (3, 73616060), (4, 55212045), (5, 44169636), (6, 36808030), (7, 31549740), (10, 22084818), (12, 18404015), (14, 15774870), (15, 14723212), (20, 11042409), (21, 10516580), (28, 7887435), (30, 7361606), (35, 6309948), (42, 5258290), (60, 3680803), (70, 3154974), (84, 2629145), (105, 2103316), (140, 1577487), (210, 1051658), (420, 525829), (421, 524580), (842, 262290), (1249, 176820), (1263, 174860), (1684, 131145), (2105, 104916), (2498, 88410), (2526, 87430), (2947, 74940), (3747, 58940), (4210, 52458), (4996, 44205), (5052, 43715), (5894, 37470), (6245, 35364), (6315, 34972), (7494, 29470), (8420, 26229), (8743, 25260), (8841, 24980), (11788, 18735), (12490, 17682), (12630, 17486), (14735, 14988)]