8402440

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2659}}^1$

素因数の和:2749

約数の個数: 32

約数和(自身を含む): 19152000

約数和(自身を除く): 10749560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 2659, 3160, 5318, 10636, 13295, 21272, 26590, 53180, 106360, 210061, 420122, 840244, 1050305, 1680488, 2100610, 4201220, 8402440]

約数ペア:

[(1, 8402440), (2, 4201220), (4, 2100610), (5, 1680488), (8, 1050305), (10, 840244), (20, 420122), (40, 210061), (79, 106360), (158, 53180), (316, 26590), (395, 21272), (632, 13295), (790, 10636), (1580, 5318), (2659, 3160)]