81559620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{3041}}^1$

素因数の和:3205

約数の個数: 72

約数和(自身を含む): 249139800

約数和(自身を除く): 167580180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 149, 180, 298, 447, 596, 745, 894, 1341, 1490, 1788, 2235, 2682, 2980, 3041, 4470, 5364, 6082, 6705, 8940, 9123, 12164, 13410, 15205, 18246, 26820, 27369, 30410, 36492, 45615, 54738, 60820, 91230, 109476, 136845, 182460, 273690, 453109, 547380, 906218, 1359327, 1812436, 2265545, 2718654, 4077981, 4531090, 5437308, 6796635, 8155962, 9062180, 13593270, 16311924, 20389905, 27186540, 40779810, 81559620]

約数ペア:

[(1, 81559620), (2, 40779810), (3, 27186540), (4, 20389905), (5, 16311924), (6, 13593270), (9, 9062180), (10, 8155962), (12, 6796635), (15, 5437308), (18, 4531090), (20, 4077981), (30, 2718654), (36, 2265545), (45, 1812436), (60, 1359327), (90, 906218), (149, 547380), (180, 453109), (298, 273690), (447, 182460), (596, 136845), (745, 109476), (894, 91230), (1341, 60820), (1490, 54738), (1788, 45615), (2235, 36492), (2682, 30410), (2980, 27369), (3041, 26820), (4470, 18246), (5364, 15205), (6082, 13410), (6705, 12164), (8940, 9123)]