19650890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^2\times {\mathrm{167}}^1$

素因数の和:263

約数の個数: 48

約数和(自身を含む): 41682816

約数和(自身を除く): 22031926

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 82, 167, 205, 287, 334, 410, 574, 835, 1169, 1435, 1670, 1681, 2338, 2870, 3362, 5845, 6847, 8405, 11690, 11767, 13694, 16810, 23534, 34235, 47929, 58835, 68470, 95858, 117670, 239645, 280727, 479290, 561454, 1403635, 1965089, 2807270, 3930178, 9825445, 19650890]

約数ペア:

[(1, 19650890), (2, 9825445), (5, 3930178), (7, 2807270), (10, 1965089), (14, 1403635), (35, 561454), (41, 479290), (70, 280727), (82, 239645), (167, 117670), (205, 95858), (287, 68470), (334, 58835), (410, 47929), (574, 34235), (835, 23534), (1169, 16810), (1435, 13694), (1670, 11767), (1681, 11690), (2338, 8405), (2870, 6847), (3362, 5845)]