221424140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{225943}}^1$

素因数の和:225966

約数の個数: 36

約数和(自身を含む): 540909936

約数和(自身を除く): 319485796

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 225943, 451886, 903772, 1129715, 1581601, 2259430, 3163202, 4518860, 6326404, 7908005, 11071207, 15816010, 22142414, 31632020, 44284828, 55356035, 110712070, 221424140]

約数ペア:

[(1, 221424140), (2, 110712070), (4, 55356035), (5, 44284828), (7, 31632020), (10, 22142414), (14, 15816010), (20, 11071207), (28, 7908005), (35, 6326404), (49, 4518860), (70, 3163202), (98, 2259430), (140, 1581601), (196, 1129715), (245, 903772), (490, 451886), (980, 225943)]