239967920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{1747}}^1$

素因数の和:1878

約数の個数: 80

約数和(自身を含む): 596935008

約数和(自身を除く): 356967088

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 101, 136, 170, 202, 272, 340, 404, 505, 680, 808, 1010, 1360, 1616, 1717, 1747, 2020, 3434, 3494, 4040, 6868, 6988, 8080, 8585, 8735, 13736, 13976, 17170, 17470, 27472, 27952, 29699, 34340, 34940, 59398, 68680, 69880, 118796, 137360, 139760, 148495, 176447, 237592, 296990, 352894, 475184, 593980, 705788, 882235, 1187960, 1411576, 1764470, 2375920, 2823152, 2999599, 3528940, 5999198, 7057880, 11998396, 14115760, 14997995, 23996792, 29995990, 47993584, 59991980, 119983960, 239967920]

約数ペア:

[(1, 239967920), (2, 119983960), (4, 59991980), (5, 47993584), (8, 29995990), (10, 23996792), (16, 14997995), (17, 14115760), (20, 11998396), (34, 7057880), (40, 5999198), (68, 3528940), (80, 2999599), (85, 2823152), (101, 2375920), (136, 1764470), (170, 1411576), (202, 1187960), (272, 882235), (340, 705788), (404, 593980), (505, 475184), (680, 352894), (808, 296990), (1010, 237592), (1360, 176447), (1616, 148495), (1717, 139760), (1747, 137360), (2020, 118796), (3434, 69880), (3494, 68680), (4040, 59398), (6868, 34940), (6988, 34340), (8080, 29699), (8585, 27952), (8735, 27472), (13736, 17470), (13976, 17170)]