81361600

素因数分解:

$2^6\times 5^2\times {\mathrm{211}}^1\times {\mathrm{241}}^1$

素因数の和:474

約数の個数: 84

約数和(自身を含む): 201983848

約数和(自身を除く): 120622248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 211, 241, 320, 400, 422, 482, 800, 844, 964, 1055, 1205, 1600, 1688, 1928, 2110, 2410, 3376, 3856, 4220, 4820, 5275, 6025, 6752, 7712, 8440, 9640, 10550, 12050, 13504, 15424, 16880, 19280, 21100, 24100, 33760, 38560, 42200, 48200, 50851, 67520, 77120, 84400, 96400, 101702, 168800, 192800, 203404, 254255, 337600, 385600, 406808, 508510, 813616, 1017020, 1271275, 1627232, 2034040, 2542550, 3254464, 4068080, 5085100, 8136160, 10170200, 16272320, 20340400, 40680800, 81361600]

約数ペア:

[(1, 81361600), (2, 40680800), (4, 20340400), (5, 16272320), (8, 10170200), (10, 8136160), (16, 5085100), (20, 4068080), (25, 3254464), (32, 2542550), (40, 2034040), (50, 1627232), (64, 1271275), (80, 1017020), (100, 813616), (160, 508510), (200, 406808), (211, 385600), (241, 337600), (320, 254255), (400, 203404), (422, 192800), (482, 168800), (800, 101702), (844, 96400), (964, 84400), (1055, 77120), (1205, 67520), (1600, 50851), (1688, 48200), (1928, 42200), (2110, 38560), (2410, 33760), (3376, 24100), (3856, 21100), (4220, 19280), (4820, 16880), (5275, 15424), (6025, 13504), (6752, 12050), (7712, 10550), (8440, 9640)]