19910170

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{179}}^1\times {\mathrm{227}}^1$

素因数の和:427

約数の個数: 48

約数和(自身を含む): 42107040

約数和(自身を除く): 22196870

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 179, 227, 245, 358, 454, 490, 895, 1135, 1253, 1589, 1790, 2270, 2506, 3178, 6265, 7945, 8771, 11123, 12530, 15890, 17542, 22246, 40633, 43855, 55615, 81266, 87710, 111230, 203165, 284431, 406330, 568862, 1422155, 1991017, 2844310, 3982034, 9955085, 19910170]

約数ペア:

[(1, 19910170), (2, 9955085), (5, 3982034), (7, 2844310), (10, 1991017), (14, 1422155), (35, 568862), (49, 406330), (70, 284431), (98, 203165), (179, 111230), (227, 87710), (245, 81266), (358, 55615), (454, 43855), (490, 40633), (895, 22246), (1135, 17542), (1253, 15890), (1589, 12530), (1790, 11123), (2270, 8771), (2506, 7945), (3178, 6265)]