20209416400

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{2971973}}^1$

素因数の和:2972008

約数の個数: 60

約数和(自身を含む): 51409206252

約数和(自身を除く): 31199789852

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, 3400, 6800, 2971973, 5943946, 11887892, 14859865, 23775784, 29719730, 47551568, 50523541, 59439460, 74299325, 101047082, 118878920, 148598650, 202094164, 237757840, 252617705, 297197300, 404188328, 505235410, 594394600, 808376656, 1010470820, 1188789200, 1263088525, 2020941640, 2526177050, 4041883280, 5052354100, 10104708200, 20209416400]

約数ペア:

[(1, 20209416400), (2, 10104708200), (4, 5052354100), (5, 4041883280), (8, 2526177050), (10, 2020941640), (16, 1263088525), (17, 1188789200), (20, 1010470820), (25, 808376656), (34, 594394600), (40, 505235410), (50, 404188328), (68, 297197300), (80, 252617705), (85, 237757840), (100, 202094164), (136, 148598650), (170, 118878920), (200, 101047082), (272, 74299325), (340, 59439460), (400, 50523541), (425, 47551568), (680, 29719730), (850, 23775784), (1360, 14859865), (1700, 11887892), (3400, 5943946), (6800, 2971973)]