780130708

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{661}}^1\times {\mathrm{691}}^1$

素因数の和:1424

約数の個数: 48

約数和(自身を含む): 1590537088

約数和(自身を除く): 810406380

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 661, 691, 854, 1322, 1382, 1708, 2644, 2764, 4627, 4837, 9254, 9674, 18508, 19348, 40321, 42151, 80642, 84302, 161284, 168604, 282247, 295057, 456751, 564494, 590114, 913502, 1128988, 1180228, 1827004, 3197257, 6394514, 12789028, 27861811, 55723622, 111447244, 195032677, 390065354, 780130708]

約数ペア:

[(1, 780130708), (2, 390065354), (4, 195032677), (7, 111447244), (14, 55723622), (28, 27861811), (61, 12789028), (122, 6394514), (244, 3197257), (427, 1827004), (661, 1180228), (691, 1128988), (854, 913502), (1322, 590114), (1382, 564494), (1708, 456751), (2644, 295057), (2764, 282247), (4627, 168604), (4837, 161284), (9254, 84302), (9674, 80642), (18508, 42151), (19348, 40321)]