64916800

素因数分解:

$2^6\times 5^2\times {\mathrm{13}}^1\times {\mathrm{3121}}^1$

素因数の和:3156

約数の個数: 84

約数和(自身を含む): 172078396

約数和(自身を除く): 107161596

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 130, 160, 200, 208, 260, 320, 325, 400, 416, 520, 650, 800, 832, 1040, 1300, 1600, 2080, 2600, 3121, 4160, 5200, 6242, 10400, 12484, 15605, 20800, 24968, 31210, 40573, 49936, 62420, 78025, 81146, 99872, 124840, 156050, 162292, 199744, 202865, 249680, 312100, 324584, 405730, 499360, 624200, 649168, 811460, 998720, 1014325, 1248400, 1298336, 1622920, 2028650, 2496800, 2596672, 3245840, 4057300, 4993600, 6491680, 8114600, 12983360, 16229200, 32458400, 64916800]

約数ペア:

[(1, 64916800), (2, 32458400), (4, 16229200), (5, 12983360), (8, 8114600), (10, 6491680), (13, 4993600), (16, 4057300), (20, 3245840), (25, 2596672), (26, 2496800), (32, 2028650), (40, 1622920), (50, 1298336), (52, 1248400), (64, 1014325), (65, 998720), (80, 811460), (100, 649168), (104, 624200), (130, 499360), (160, 405730), (200, 324584), (208, 312100), (260, 249680), (320, 202865), (325, 199744), (400, 162292), (416, 156050), (520, 124840), (650, 99872), (800, 81146), (832, 78025), (1040, 62420), (1300, 49936), (1600, 40573), (2080, 31210), (2600, 24968), (3121, 20800), (4160, 15605), (5200, 12484), (6242, 10400)]