38750000

素因数分解:

$2^4\times 5^7\times {\mathrm{31}}^1$

素因数の和:74

約数の個数: 80

約数和(自身を含む): 96874752

約数和(自身を除く): 58124752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 125, 155, 200, 248, 250, 310, 400, 496, 500, 620, 625, 775, 1000, 1240, 1250, 1550, 2000, 2480, 2500, 3100, 3125, 3875, 5000, 6200, 6250, 7750, 10000, 12400, 12500, 15500, 15625, 19375, 25000, 31000, 31250, 38750, 50000, 62000, 62500, 77500, 78125, 96875, 125000, 155000, 156250, 193750, 250000, 310000, 312500, 387500, 484375, 625000, 775000, 968750, 1250000, 1550000, 1937500, 2421875, 3875000, 4843750, 7750000, 9687500, 19375000, 38750000]

約数ペア:

[(1, 38750000), (2, 19375000), (4, 9687500), (5, 7750000), (8, 4843750), (10, 3875000), (16, 2421875), (20, 1937500), (25, 1550000), (31, 1250000), (40, 968750), (50, 775000), (62, 625000), (80, 484375), (100, 387500), (124, 312500), (125, 310000), (155, 250000), (200, 193750), (248, 156250), (250, 155000), (310, 125000), (400, 96875), (496, 78125), (500, 77500), (620, 62500), (625, 62000), (775, 50000), (1000, 38750), (1240, 31250), (1250, 31000), (1550, 25000), (2000, 19375), (2480, 15625), (2500, 15500), (3100, 12500), (3125, 12400), (3875, 10000), (5000, 7750), (6200, 6250)]