20317400

素因数分解:

$2^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1$

素因数の和:189

約数の個数: 96

約数和(自身を含む): 50889600

約数和(自身を除く): 30572200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 31, 40, 50, 58, 62, 100, 113, 116, 124, 145, 155, 200, 226, 232, 248, 290, 310, 452, 565, 580, 620, 725, 775, 899, 904, 1130, 1160, 1240, 1450, 1550, 1798, 2260, 2825, 2900, 3100, 3277, 3503, 3596, 4495, 4520, 5650, 5800, 6200, 6554, 7006, 7192, 8990, 11300, 13108, 14012, 16385, 17515, 17980, 22475, 22600, 26216, 28024, 32770, 35030, 35960, 44950, 65540, 70060, 81925, 87575, 89900, 101587, 131080, 140120, 163850, 175150, 179800, 203174, 327700, 350300, 406348, 507935, 655400, 700600, 812696, 1015870, 2031740, 2539675, 4063480, 5079350, 10158700, 20317400]

約数ペア:

[(1, 20317400), (2, 10158700), (4, 5079350), (5, 4063480), (8, 2539675), (10, 2031740), (20, 1015870), (25, 812696), (29, 700600), (31, 655400), (40, 507935), (50, 406348), (58, 350300), (62, 327700), (100, 203174), (113, 179800), (116, 175150), (124, 163850), (145, 140120), (155, 131080), (200, 101587), (226, 89900), (232, 87575), (248, 81925), (290, 70060), (310, 65540), (452, 44950), (565, 35960), (580, 35030), (620, 32770), (725, 28024), (775, 26216), (899, 22600), (904, 22475), (1130, 17980), (1160, 17515), (1240, 16385), (1450, 14012), (1550, 13108), (1798, 11300), (2260, 8990), (2825, 7192), (2900, 7006), (3100, 6554), (3277, 6200), (3503, 5800), (3596, 5650), (4495, 4520)]