217413520

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1\times {\mathrm{239}}^1$

素因数の和:472

約数の個数: 80

約数和(自身を含む): 517466880

約数和(自身を除く): 300053360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 137, 166, 239, 274, 332, 415, 478, 548, 664, 685, 830, 956, 1096, 1195, 1328, 1370, 1660, 1912, 2192, 2390, 2740, 3320, 3824, 4780, 5480, 6640, 9560, 10960, 11371, 19120, 19837, 22742, 32743, 39674, 45484, 56855, 65486, 79348, 90968, 99185, 113710, 130972, 158696, 163715, 181936, 198370, 227420, 261944, 317392, 327430, 396740, 454840, 523888, 654860, 793480, 909680, 1309720, 1586960, 2619440, 2717669, 5435338, 10870676, 13588345, 21741352, 27176690, 43482704, 54353380, 108706760, 217413520]

約数ペア:

[(1, 217413520), (2, 108706760), (4, 54353380), (5, 43482704), (8, 27176690), (10, 21741352), (16, 13588345), (20, 10870676), (40, 5435338), (80, 2717669), (83, 2619440), (137, 1586960), (166, 1309720), (239, 909680), (274, 793480), (332, 654860), (415, 523888), (478, 454840), (548, 396740), (664, 327430), (685, 317392), (830, 261944), (956, 227420), (1096, 198370), (1195, 181936), (1328, 163715), (1370, 158696), (1660, 130972), (1912, 113710), (2192, 99185), (2390, 90968), (2740, 79348), (3320, 65486), (3824, 56855), (4780, 45484), (5480, 39674), (6640, 32743), (9560, 22742), (10960, 19837), (11371, 19120)]