1990291254

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{313}}^1\times {\mathrm{1499}}^1$

素因数の和:1925

約数の個数: 64

約数和(自身を含む): 4612032000

約数和(自身を除く): 2621740746

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 101, 202, 303, 313, 606, 626, 707, 939, 1414, 1499, 1878, 2121, 2191, 2998, 4242, 4382, 4497, 6573, 8994, 10493, 13146, 20986, 31479, 31613, 62958, 63226, 94839, 151399, 189678, 221291, 302798, 442582, 454197, 469187, 663873, 908394, 938374, 1059793, 1327746, 1407561, 2119586, 2815122, 3179379, 3284309, 6358758, 6568618, 9852927, 19705854, 47387887, 94775774, 142163661, 284327322, 331715209, 663430418, 995145627, 1990291254]

約数ペア:

[(1, 1990291254), (2, 995145627), (3, 663430418), (6, 331715209), (7, 284327322), (14, 142163661), (21, 94775774), (42, 47387887), (101, 19705854), (202, 9852927), (303, 6568618), (313, 6358758), (606, 3284309), (626, 3179379), (707, 2815122), (939, 2119586), (1414, 1407561), (1499, 1327746), (1878, 1059793), (2121, 938374), (2191, 908394), (2998, 663873), (4242, 469187), (4382, 454197), (4497, 442582), (6573, 302798), (8994, 221291), (10493, 189678), (13146, 151399), (20986, 94839), (31479, 63226), (31613, 62958)]