9687500

素因数分解:

$2^2\times 5^7\times {\mathrm{31}}^1$

素因数の和:70

約数の個数: 48

約数和(自身を含む): 21874944

約数和(自身を除く): 12187444

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 125, 155, 250, 310, 500, 620, 625, 775, 1250, 1550, 2500, 3100, 3125, 3875, 6250, 7750, 12500, 15500, 15625, 19375, 31250, 38750, 62500, 77500, 78125, 96875, 156250, 193750, 312500, 387500, 484375, 968750, 1937500, 2421875, 4843750, 9687500]

約数ペア:

[(1, 9687500), (2, 4843750), (4, 2421875), (5, 1937500), (10, 968750), (20, 484375), (25, 387500), (31, 312500), (50, 193750), (62, 156250), (100, 96875), (124, 78125), (125, 77500), (155, 62500), (250, 38750), (310, 31250), (500, 19375), (620, 15625), (625, 15500), (775, 12500), (1250, 7750), (1550, 6250), (2500, 3875), (3100, 3125)]