20081950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{317}}^1$

素因数の和:517

約数の個数: 48

約数和(自身を含む): 43059744

約数和(自身を除く): 22977794

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 175, 181, 317, 350, 362, 634, 905, 1267, 1585, 1810, 2219, 2534, 3170, 4438, 4525, 6335, 7925, 9050, 11095, 12670, 15850, 22190, 31675, 55475, 57377, 63350, 110950, 114754, 286885, 401639, 573770, 803278, 1434425, 2008195, 2868850, 4016390, 10040975, 20081950]

約数ペア:

[(1, 20081950), (2, 10040975), (5, 4016390), (7, 2868850), (10, 2008195), (14, 1434425), (25, 803278), (35, 573770), (50, 401639), (70, 286885), (175, 114754), (181, 110950), (317, 63350), (350, 57377), (362, 55475), (634, 31675), (905, 22190), (1267, 15850), (1585, 12670), (1810, 11095), (2219, 9050), (2534, 7925), (3170, 6335), (4438, 4525)]