3100000

素因数分解:

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

素因数の和:66

約数の個数: 72

約数和(自身を含む): 7874496

約数和(自身を除く): 4774496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 80, 100, 124, 125, 155, 160, 200, 248, 250, 310, 400, 496, 500, 620, 625, 775, 800, 992, 1000, 1240, 1250, 1550, 2000, 2480, 2500, 3100, 3125, 3875, 4000, 4960, 5000, 6200, 6250, 7750, 10000, 12400, 12500, 15500, 19375, 20000, 24800, 25000, 31000, 38750, 50000, 62000, 77500, 96875, 100000, 124000, 155000, 193750, 310000, 387500, 620000, 775000, 1550000, 3100000]

約数ペア:

[(1, 3100000), (2, 1550000), (4, 775000), (5, 620000), (8, 387500), (10, 310000), (16, 193750), (20, 155000), (25, 124000), (31, 100000), (32, 96875), (40, 77500), (50, 62000), (62, 50000), (80, 38750), (100, 31000), (124, 25000), (125, 24800), (155, 20000), (160, 19375), (200, 15500), (248, 12500), (250, 12400), (310, 10000), (400, 7750), (496, 6250), (500, 6200), (620, 5000), (625, 4960), (775, 4000), (800, 3875), (992, 3125), (1000, 3100), (1240, 2500), (1250, 2480), (1550, 2000)]