31560781720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{253949}}^1$

素因数の和:254212

約数の個数: 64

約数和(自身を含む): 76794480000

約数和(自身を除く): 45233698280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 239, 260, 478, 520, 956, 1195, 1912, 2390, 3107, 4780, 6214, 9560, 12428, 15535, 24856, 31070, 62140, 124280, 253949, 507898, 1015796, 1269745, 2031592, 2539490, 3301337, 5078980, 6602674, 10157960, 13205348, 16506685, 26410696, 33013370, 60693811, 66026740, 121387622, 132053480, 242775244, 303469055, 485550488, 606938110, 789019543, 1213876220, 1578039086, 2427752440, 3156078172, 3945097715, 6312156344, 7890195430, 15780390860, 31560781720]

約数ペア:

[(1, 31560781720), (2, 15780390860), (4, 7890195430), (5, 6312156344), (8, 3945097715), (10, 3156078172), (13, 2427752440), (20, 1578039086), (26, 1213876220), (40, 789019543), (52, 606938110), (65, 485550488), (104, 303469055), (130, 242775244), (239, 132053480), (260, 121387622), (478, 66026740), (520, 60693811), (956, 33013370), (1195, 26410696), (1912, 16506685), (2390, 13205348), (3107, 10157960), (4780, 6602674), (6214, 5078980), (9560, 3301337), (12428, 2539490), (15535, 2031592), (24856, 1269745), (31070, 1015796), (62140, 507898), (124280, 253949)]