67285880

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{199}}^1$

素因数の和:396

約数の個数: 64

約数和(自身を含む): 155520000

約数和(自身を除く): 88234120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 107, 158, 199, 214, 316, 395, 398, 428, 535, 632, 790, 796, 856, 995, 1070, 1580, 1592, 1990, 2140, 3160, 3980, 4280, 7960, 8453, 15721, 16906, 21293, 31442, 33812, 42265, 42586, 62884, 67624, 78605, 84530, 85172, 106465, 125768, 157210, 169060, 170344, 212930, 314420, 338120, 425860, 628840, 851720, 1682147, 3364294, 6728588, 8410735, 13457176, 16821470, 33642940, 67285880]

約数ペア:

[(1, 67285880), (2, 33642940), (4, 16821470), (5, 13457176), (8, 8410735), (10, 6728588), (20, 3364294), (40, 1682147), (79, 851720), (107, 628840), (158, 425860), (199, 338120), (214, 314420), (316, 212930), (395, 170344), (398, 169060), (428, 157210), (535, 125768), (632, 106465), (790, 85172), (796, 84530), (856, 78605), (995, 67624), (1070, 62884), (1580, 42586), (1592, 42265), (1990, 33812), (2140, 31442), (3160, 21293), (3980, 16906), (4280, 15721), (7960, 8453)]