215906960

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1\times {\mathrm{307}}^1$

素因数の和:528

約数の個数: 80

約数和(自身を含む): 515592000

約数和(自身を除く): 299685040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 149, 236, 295, 298, 307, 472, 590, 596, 614, 745, 944, 1180, 1192, 1228, 1490, 1535, 2360, 2384, 2456, 2980, 3070, 4720, 4912, 5960, 6140, 8791, 11920, 12280, 17582, 18113, 24560, 35164, 36226, 43955, 45743, 70328, 72452, 87910, 90565, 91486, 140656, 144904, 175820, 181130, 182972, 228715, 289808, 351640, 362260, 365944, 457430, 703280, 724520, 731888, 914860, 1449040, 1829720, 2698837, 3659440, 5397674, 10795348, 13494185, 21590696, 26988370, 43181392, 53976740, 107953480, 215906960]

約数ペア:

[(1, 215906960), (2, 107953480), (4, 53976740), (5, 43181392), (8, 26988370), (10, 21590696), (16, 13494185), (20, 10795348), (40, 5397674), (59, 3659440), (80, 2698837), (118, 1829720), (149, 1449040), (236, 914860), (295, 731888), (298, 724520), (307, 703280), (472, 457430), (590, 365944), (596, 362260), (614, 351640), (745, 289808), (944, 228715), (1180, 182972), (1192, 181130), (1228, 175820), (1490, 144904), (1535, 140656), (2360, 91486), (2384, 90565), (2456, 87910), (2980, 72452), (3070, 70328), (4720, 45743), (4912, 43955), (5960, 36226), (6140, 35164), (8791, 24560), (11920, 18113), (12280, 17582)]