19422500

素因数分解:

$2^2\times 5^4\times {\mathrm{17}}^1\times {\mathrm{457}}^1$

素因数の和:498

約数の個数: 60

約数和(自身を含む): 45069948

約数和(自身を除く): 25647448

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 125, 170, 250, 340, 425, 457, 500, 625, 850, 914, 1250, 1700, 1828, 2125, 2285, 2500, 4250, 4570, 7769, 8500, 9140, 10625, 11425, 15538, 21250, 22850, 31076, 38845, 42500, 45700, 57125, 77690, 114250, 155380, 194225, 228500, 285625, 388450, 571250, 776900, 971125, 1142500, 1942250, 3884500, 4855625, 9711250, 19422500]

約数ペア:

[(1, 19422500), (2, 9711250), (4, 4855625), (5, 3884500), (10, 1942250), (17, 1142500), (20, 971125), (25, 776900), (34, 571250), (50, 388450), (68, 285625), (85, 228500), (100, 194225), (125, 155380), (170, 114250), (250, 77690), (340, 57125), (425, 45700), (457, 42500), (500, 38845), (625, 31076), (850, 22850), (914, 21250), (1250, 15538), (1700, 11425), (1828, 10625), (2125, 9140), (2285, 8500), (2500, 7769), (4250, 4570)]