3895000

素因数分解:

$2^3\times 5^4\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:86

約数の個数: 80

約数和(自身を含む): 9840600

約数和(自身を除く): 5945600

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 41, 50, 76, 82, 95, 100, 125, 152, 164, 190, 200, 205, 250, 328, 380, 410, 475, 500, 625, 760, 779, 820, 950, 1000, 1025, 1250, 1558, 1640, 1900, 2050, 2375, 2500, 3116, 3800, 3895, 4100, 4750, 5000, 5125, 6232, 7790, 8200, 9500, 10250, 11875, 15580, 19000, 19475, 20500, 23750, 25625, 31160, 38950, 41000, 47500, 51250, 77900, 95000, 97375, 102500, 155800, 194750, 205000, 389500, 486875, 779000, 973750, 1947500, 3895000]

約数ペア:

[(1, 3895000), (2, 1947500), (4, 973750), (5, 779000), (8, 486875), (10, 389500), (19, 205000), (20, 194750), (25, 155800), (38, 102500), (40, 97375), (41, 95000), (50, 77900), (76, 51250), (82, 47500), (95, 41000), (100, 38950), (125, 31160), (152, 25625), (164, 23750), (190, 20500), (200, 19475), (205, 19000), (250, 15580), (328, 11875), (380, 10250), (410, 9500), (475, 8200), (500, 7790), (625, 6232), (760, 5125), (779, 5000), (820, 4750), (950, 4100), (1000, 3895), (1025, 3800), (1250, 3116), (1558, 2500), (1640, 2375), (1900, 2050)]