38950000

素因数分解:

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

素因数の和:93

約数の個数: 120

約数和(自身を含む): 101712240

約数和(自身を除く): 62762240

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 41, 50, 76, 80, 82, 95, 100, 125, 152, 164, 190, 200, 205, 250, 304, 328, 380, 400, 410, 475, 500, 625, 656, 760, 779, 820, 950, 1000, 1025, 1250, 1520, 1558, 1640, 1900, 2000, 2050, 2375, 2500, 3116, 3125, 3280, 3800, 3895, 4100, 4750, 5000, 5125, 6232, 6250, 7600, 7790, 8200, 9500, 10000, 10250, 11875, 12464, 12500, 15580, 16400, 19000, 19475, 20500, 23750, 25000, 25625, 31160, 38000, 38950, 41000, 47500, 50000, 51250, 59375, 62320, 77900, 82000, 95000, 97375, 102500, 118750, 128125, 155800, 190000, 194750, 205000, 237500, 256250, 311600, 389500, 410000, 475000, 486875, 512500, 779000, 950000, 973750, 1025000, 1558000, 1947500, 2050000, 2434375, 3895000, 4868750, 7790000, 9737500, 19475000, 38950000]

約数ペア:

[(1, 38950000), (2, 19475000), (4, 9737500), (5, 7790000), (8, 4868750), (10, 3895000), (16, 2434375), (19, 2050000), (20, 1947500), (25, 1558000), (38, 1025000), (40, 973750), (41, 950000), (50, 779000), (76, 512500), (80, 486875), (82, 475000), (95, 410000), (100, 389500), (125, 311600), (152, 256250), (164, 237500), (190, 205000), (200, 194750), (205, 190000), (250, 155800), (304, 128125), (328, 118750), (380, 102500), (400, 97375), (410, 95000), (475, 82000), (500, 77900), (625, 62320), (656, 59375), (760, 51250), (779, 50000), (820, 47500), (950, 41000), (1000, 38950), (1025, 38000), (1250, 31160), (1520, 25625), (1558, 25000), (1640, 23750), (1900, 20500), (2000, 19475), (2050, 19000), (2375, 16400), (2500, 15580), (3116, 12500), (3125, 12464), (3280, 11875), (3800, 10250), (3895, 10000), (4100, 9500), (4750, 8200), (5000, 7790), (5125, 7600), (6232, 6250)]