56164340

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{227}}^1$

素因数の和:464

約数の個数: 48

約数和(自身を含む): 120657600

約数和(自身を除く): 64493260

約数列:

[1, 2, 4, 5, 10, 20, 89, 139, 178, 227, 278, 356, 445, 454, 556, 695, 890, 908, 1135, 1390, 1780, 2270, 2780, 4540, 12371, 20203, 24742, 31553, 40406, 49484, 61855, 63106, 80812, 101015, 123710, 126212, 157765, 202030, 247420, 315530, 404060, 631060, 2808217, 5616434, 11232868, 14041085, 28082170, 56164340]

約数ペア:

[(1, 56164340), (2, 28082170), (4, 14041085), (5, 11232868), (10, 5616434), (20, 2808217), (89, 631060), (139, 404060), (178, 315530), (227, 247420), (278, 202030), (356, 157765), (445, 126212), (454, 123710), (556, 101015), (695, 80812), (890, 63106), (908, 61855), (1135, 49484), (1390, 40406), (1780, 31553), (2270, 24742), (2780, 20203), (4540, 12371)]