280137080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1\times {\mathrm{859}}^1$

素因数の和:1164

約数の個数: 64

約数和(自身を含む): 653875200

約数和(自身を除く): 373738120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 263, 310, 526, 620, 859, 1052, 1240, 1315, 1718, 2104, 2630, 3436, 4295, 5260, 6872, 8153, 8590, 10520, 16306, 17180, 26629, 32612, 34360, 40765, 53258, 65224, 81530, 106516, 133145, 163060, 213032, 225917, 266290, 326120, 451834, 532580, 903668, 1065160, 1129585, 1807336, 2259170, 4518340, 7003427, 9036680, 14006854, 28013708, 35017135, 56027416, 70034270, 140068540, 280137080]

約数ペア:

[(1, 280137080), (2, 140068540), (4, 70034270), (5, 56027416), (8, 35017135), (10, 28013708), (20, 14006854), (31, 9036680), (40, 7003427), (62, 4518340), (124, 2259170), (155, 1807336), (248, 1129585), (263, 1065160), (310, 903668), (526, 532580), (620, 451834), (859, 326120), (1052, 266290), (1240, 225917), (1315, 213032), (1718, 163060), (2104, 133145), (2630, 106516), (3436, 81530), (4295, 65224), (5260, 53258), (6872, 40765), (8153, 34360), (8590, 32612), (10520, 26629), (16306, 17180)]