15580000

素因数分解:

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

素因数の和:90

約数の個数: 120

約数和(自身を含む): 41330520

約数和(自身を除く): 25750520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 32, 38, 40, 41, 50, 76, 80, 82, 95, 100, 125, 152, 160, 164, 190, 200, 205, 250, 304, 328, 380, 400, 410, 475, 500, 608, 625, 656, 760, 779, 800, 820, 950, 1000, 1025, 1250, 1312, 1520, 1558, 1640, 1900, 2000, 2050, 2375, 2500, 3040, 3116, 3280, 3800, 3895, 4000, 4100, 4750, 5000, 5125, 6232, 6560, 7600, 7790, 8200, 9500, 10000, 10250, 11875, 12464, 15200, 15580, 16400, 19000, 19475, 20000, 20500, 23750, 24928, 25625, 31160, 32800, 38000, 38950, 41000, 47500, 51250, 62320, 76000, 77900, 82000, 95000, 97375, 102500, 124640, 155800, 164000, 190000, 194750, 205000, 311600, 380000, 389500, 410000, 486875, 623200, 779000, 820000, 973750, 1558000, 1947500, 3116000, 3895000, 7790000, 15580000]

約数ペア:

[(1, 15580000), (2, 7790000), (4, 3895000), (5, 3116000), (8, 1947500), (10, 1558000), (16, 973750), (19, 820000), (20, 779000), (25, 623200), (32, 486875), (38, 410000), (40, 389500), (41, 380000), (50, 311600), (76, 205000), (80, 194750), (82, 190000), (95, 164000), (100, 155800), (125, 124640), (152, 102500), (160, 97375), (164, 95000), (190, 82000), (200, 77900), (205, 76000), (250, 62320), (304, 51250), (328, 47500), (380, 41000), (400, 38950), (410, 38000), (475, 32800), (500, 31160), (608, 25625), (625, 24928), (656, 23750), (760, 20500), (779, 20000), (800, 19475), (820, 19000), (950, 16400), (1000, 15580), (1025, 15200), (1250, 12464), (1312, 11875), (1520, 10250), (1558, 10000), (1640, 9500), (1900, 8200), (2000, 7790), (2050, 7600), (2375, 6560), (2500, 6232), (3040, 5125), (3116, 5000), (3280, 4750), (3800, 4100), (3895, 4000)]