48437500

素因数分解:

$2^2\times 5^8\times {\mathrm{31}}^1$

素因数の和:75

約数の個数: 54

約数和(自身を含む): 109374944

約数和(自身を除く): 60937444

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, 390625, 484375, 781250, 968750, 1562500, 1937500, 2421875, 4843750, 9687500, 12109375, 24218750, 48437500]

約数ペア:

[(1, 48437500), (2, 24218750), (4, 12109375), (5, 9687500), (10, 4843750), (20, 2421875), (25, 1937500), (31, 1562500), (50, 968750), (62, 781250), (100, 484375), (124, 390625), (125, 387500), (155, 312500), (250, 193750), (310, 156250), (500, 96875), (620, 78125), (625, 77500), (775, 62500), (1250, 38750), (1550, 31250), (2500, 19375), (3100, 15625), (3125, 15500), (3875, 12500), (6250, 7750)]