65371280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{263}}^1$

素因数の和:528

約数の個数: 80

約数和(自身を含む): 164989440

約数和(自身を除く): 99618160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 239, 260, 263, 478, 520, 526, 956, 1040, 1052, 1195, 1315, 1912, 2104, 2390, 2630, 3107, 3419, 3824, 4208, 4780, 5260, 6214, 6838, 9560, 10520, 12428, 13676, 15535, 17095, 19120, 21040, 24856, 27352, 31070, 34190, 49712, 54704, 62140, 62857, 68380, 124280, 125714, 136760, 248560, 251428, 273520, 314285, 502856, 628570, 817141, 1005712, 1257140, 1634282, 2514280, 3268564, 4085705, 5028560, 6537128, 8171410, 13074256, 16342820, 32685640, 65371280]

約数ペア:

[(1, 65371280), (2, 32685640), (4, 16342820), (5, 13074256), (8, 8171410), (10, 6537128), (13, 5028560), (16, 4085705), (20, 3268564), (26, 2514280), (40, 1634282), (52, 1257140), (65, 1005712), (80, 817141), (104, 628570), (130, 502856), (208, 314285), (239, 273520), (260, 251428), (263, 248560), (478, 136760), (520, 125714), (526, 124280), (956, 68380), (1040, 62857), (1052, 62140), (1195, 54704), (1315, 49712), (1912, 34190), (2104, 31070), (2390, 27352), (2630, 24856), (3107, 21040), (3419, 19120), (3824, 17095), (4208, 15535), (4780, 13676), (5260, 12428), (6214, 10520), (6838, 9560)]