211506540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{71941}}^1$

素因数の和:71967

約数の個数: 72

約数和(自身を含む): 688916592

約数和(自身を除く): 477410052

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 71941, 143882, 215823, 287764, 359705, 431646, 503587, 719410, 863292, 1007174, 1079115, 1438820, 1510761, 2014348, 2158230, 2517935, 3021522, 3525109, 4316460, 5035870, 6043044, 7050218, 7553805, 10071740, 10575327, 14100436, 15107610, 17625545, 21150654, 30215220, 35251090, 42301308, 52876635, 70502180, 105753270, 211506540]

約数ペア:

[(1, 211506540), (2, 105753270), (3, 70502180), (4, 52876635), (5, 42301308), (6, 35251090), (7, 30215220), (10, 21150654), (12, 17625545), (14, 15107610), (15, 14100436), (20, 10575327), (21, 10071740), (28, 7553805), (30, 7050218), (35, 6043044), (42, 5035870), (49, 4316460), (60, 3525109), (70, 3021522), (84, 2517935), (98, 2158230), (105, 2014348), (140, 1510761), (147, 1438820), (196, 1079115), (210, 1007174), (245, 863292), (294, 719410), (420, 503587), (490, 431646), (588, 359705), (735, 287764), (980, 215823), (1470, 143882), (2940, 71941)]