828542920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{3793}}^1$

素因数の和:3974

約数の個数: 64

約数和(自身を含む): 1923102720

約数和(自身を除く): 1094559800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 127, 172, 215, 254, 344, 430, 508, 635, 860, 1016, 1270, 1720, 2540, 3793, 5080, 5461, 7586, 10922, 15172, 18965, 21844, 27305, 30344, 37930, 43688, 54610, 75860, 109220, 151720, 163099, 218440, 326198, 481711, 652396, 815495, 963422, 1304792, 1630990, 1926844, 2408555, 3261980, 3853688, 4817110, 6523960, 9634220, 19268440, 20713573, 41427146, 82854292, 103567865, 165708584, 207135730, 414271460, 828542920]

約数ペア:

[(1, 828542920), (2, 414271460), (4, 207135730), (5, 165708584), (8, 103567865), (10, 82854292), (20, 41427146), (40, 20713573), (43, 19268440), (86, 9634220), (127, 6523960), (172, 4817110), (215, 3853688), (254, 3261980), (344, 2408555), (430, 1926844), (508, 1630990), (635, 1304792), (860, 963422), (1016, 815495), (1270, 652396), (1720, 481711), (2540, 326198), (3793, 218440), (5080, 163099), (5461, 151720), (7586, 109220), (10922, 75860), (15172, 54610), (18965, 43688), (21844, 37930), (27305, 30344)]