28218250

素因数分解:

$2^1\times 5^3\times {\mathrm{41}}^1\times {\mathrm{2753}}^1$

素因数の和:2811

約数の個数: 32

約数和(自身を含む): 54132624

約数和(自身を除く): 25914374

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 125, 205, 250, 410, 1025, 2050, 2753, 5125, 5506, 10250, 13765, 27530, 68825, 112873, 137650, 225746, 344125, 564365, 688250, 1128730, 2821825, 5643650, 14109125, 28218250]

約数ペア:

[(1, 28218250), (2, 14109125), (5, 5643650), (10, 2821825), (25, 1128730), (41, 688250), (50, 564365), (82, 344125), (125, 225746), (205, 137650), (250, 112873), (410, 68825), (1025, 27530), (2050, 13765), (2753, 10250), (5125, 5506)]