20202800

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{2971}}^1$

素因数の和:3006

約数の個数: 60

約数和(自身を含む): 51409656

約数和(自身を除く): 31206856

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 136, 170, 200, 272, 340, 400, 425, 680, 850, 1360, 1700, 2971, 3400, 5942, 6800, 11884, 14855, 23768, 29710, 47536, 50507, 59420, 74275, 101014, 118840, 148550, 202028, 237680, 252535, 297100, 404056, 505070, 594200, 808112, 1010140, 1188400, 1262675, 2020280, 2525350, 4040560, 5050700, 10101400, 20202800]

約数ペア:

[(1, 20202800), (2, 10101400), (4, 5050700), (5, 4040560), (8, 2525350), (10, 2020280), (16, 1262675), (17, 1188400), (20, 1010140), (25, 808112), (34, 594200), (40, 505070), (50, 404056), (68, 297100), (80, 252535), (85, 237680), (100, 202028), (136, 148550), (170, 118840), (200, 101014), (272, 74275), (340, 59420), (400, 50507), (425, 47536), (680, 29710), (850, 23768), (1360, 14855), (1700, 11884), (2971, 6800), (3400, 5942)]