31357220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{461}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 69854400

約数和(自身を除く): 38497180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 179, 190, 358, 380, 461, 716, 895, 922, 1790, 1844, 2305, 3401, 3580, 4610, 6802, 8759, 9220, 13604, 17005, 17518, 34010, 35036, 43795, 68020, 82519, 87590, 165038, 175180, 330076, 412595, 825190, 1567861, 1650380, 3135722, 6271444, 7839305, 15678610, 31357220]

約数ペア:

[(1, 31357220), (2, 15678610), (4, 7839305), (5, 6271444), (10, 3135722), (19, 1650380), (20, 1567861), (38, 825190), (76, 412595), (95, 330076), (179, 175180), (190, 165038), (358, 87590), (380, 82519), (461, 68020), (716, 43795), (895, 35036), (922, 34010), (1790, 17518), (1844, 17005), (2305, 13604), (3401, 9220), (3580, 8759), (4610, 6802)]