9815661520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{221873}}^1$

素因数の和:221972

約数の個数: 80

約数和(自身を含む): 26411880960

約数和(自身を除く): 16596219440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 79, 80, 112, 140, 158, 280, 316, 395, 553, 560, 632, 790, 1106, 1264, 1580, 2212, 2765, 3160, 4424, 5530, 6320, 8848, 11060, 22120, 44240, 221873, 443746, 887492, 1109365, 1553111, 1774984, 2218730, 3106222, 3549968, 4437460, 6212444, 7765555, 8874920, 12424888, 15531110, 17527967, 17749840, 24849776, 31062220, 35055934, 62124440, 70111868, 87639835, 122695769, 124248880, 140223736, 175279670, 245391538, 280447472, 350559340, 490783076, 613478845, 701118680, 981566152, 1226957690, 1402237360, 1963132304, 2453915380, 4907830760, 9815661520]

約数ペア:

[(1, 9815661520), (2, 4907830760), (4, 2453915380), (5, 1963132304), (7, 1402237360), (8, 1226957690), (10, 981566152), (14, 701118680), (16, 613478845), (20, 490783076), (28, 350559340), (35, 280447472), (40, 245391538), (56, 175279670), (70, 140223736), (79, 124248880), (80, 122695769), (112, 87639835), (140, 70111868), (158, 62124440), (280, 35055934), (316, 31062220), (395, 24849776), (553, 17749840), (560, 17527967), (632, 15531110), (790, 12424888), (1106, 8874920), (1264, 7765555), (1580, 6212444), (2212, 4437460), (2765, 3549968), (3160, 3106222), (4424, 2218730), (5530, 1774984), (6320, 1553111), (8848, 1109365), (11060, 887492), (22120, 443746), (44240, 221873)]