51582920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{443}}^1$

素因数の和:566

約数の個数: 64

約数和(自身を含む): 120839040

約数和(自身を除く): 69256120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 71, 82, 142, 164, 205, 284, 328, 355, 410, 443, 568, 710, 820, 886, 1420, 1640, 1772, 2215, 2840, 2911, 3544, 4430, 5822, 8860, 11644, 14555, 17720, 18163, 23288, 29110, 31453, 36326, 58220, 62906, 72652, 90815, 116440, 125812, 145304, 157265, 181630, 251624, 314530, 363260, 629060, 726520, 1258120, 1289573, 2579146, 5158292, 6447865, 10316584, 12895730, 25791460, 51582920]

約数ペア:

[(1, 51582920), (2, 25791460), (4, 12895730), (5, 10316584), (8, 6447865), (10, 5158292), (20, 2579146), (40, 1289573), (41, 1258120), (71, 726520), (82, 629060), (142, 363260), (164, 314530), (205, 251624), (284, 181630), (328, 157265), (355, 145304), (410, 125812), (443, 116440), (568, 90815), (710, 72652), (820, 62906), (886, 58220), (1420, 36326), (1640, 31453), (1772, 29110), (2215, 23288), (2840, 18163), (2911, 17720), (3544, 14555), (4430, 11644), (5822, 8860)]