19375000

素因数分解:

$2^3\times 5^7\times {\mathrm{31}}^1$

素因数の和:72

約数の個数: 64

約数和(自身を含む): 46874880

約数和(自身を除く): 27499880

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 125, 155, 200, 248, 250, 310, 500, 620, 625, 775, 1000, 1240, 1250, 1550, 2500, 3100, 3125, 3875, 5000, 6200, 6250, 7750, 12500, 15500, 15625, 19375, 25000, 31000, 31250, 38750, 62500, 77500, 78125, 96875, 125000, 155000, 156250, 193750, 312500, 387500, 484375, 625000, 775000, 968750, 1937500, 2421875, 3875000, 4843750, 9687500, 19375000]

約数ペア:

[(1, 19375000), (2, 9687500), (4, 4843750), (5, 3875000), (8, 2421875), (10, 1937500), (20, 968750), (25, 775000), (31, 625000), (40, 484375), (50, 387500), (62, 312500), (100, 193750), (124, 156250), (125, 155000), (155, 125000), (200, 96875), (248, 78125), (250, 77500), (310, 62500), (500, 38750), (620, 31250), (625, 31000), (775, 25000), (1000, 19375), (1240, 15625), (1250, 15500), (1550, 12500), (2500, 7750), (3100, 6250), (3125, 6200), (3875, 5000)]