20208750

素因数分解:

$2^1\times 3^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{317}}^1$

素因数の和:359

約数の個数: 80

約数和(自身を含む): 53645328

約数和(自身を除く): 33436578

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 25, 30, 34, 50, 51, 75, 85, 102, 125, 150, 170, 250, 255, 317, 375, 425, 510, 625, 634, 750, 850, 951, 1250, 1275, 1585, 1875, 1902, 2125, 2550, 3170, 3750, 4250, 4755, 5389, 6375, 7925, 9510, 10625, 10778, 12750, 15850, 16167, 21250, 23775, 26945, 31875, 32334, 39625, 47550, 53890, 63750, 79250, 80835, 118875, 134725, 161670, 198125, 237750, 269450, 396250, 404175, 594375, 673625, 808350, 1188750, 1347250, 2020875, 3368125, 4041750, 6736250, 10104375, 20208750]

約数ペア:

[(1, 20208750), (2, 10104375), (3, 6736250), (5, 4041750), (6, 3368125), (10, 2020875), (15, 1347250), (17, 1188750), (25, 808350), (30, 673625), (34, 594375), (50, 404175), (51, 396250), (75, 269450), (85, 237750), (102, 198125), (125, 161670), (150, 134725), (170, 118875), (250, 80835), (255, 79250), (317, 63750), (375, 53890), (425, 47550), (510, 39625), (625, 32334), (634, 31875), (750, 26945), (850, 23775), (951, 21250), (1250, 16167), (1275, 15850), (1585, 12750), (1875, 10778), (1902, 10625), (2125, 9510), (2550, 7925), (3170, 6375), (3750, 5389), (4250, 4755)]