31485420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{829}}^1$

素因数の和:1055

約数の個数: 72

約数和(自身を含む): 96074160

約数和(自身を除く): 64588740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 211, 422, 633, 829, 844, 1055, 1266, 1658, 1899, 2110, 2487, 2532, 3165, 3316, 3798, 4145, 4220, 4974, 6330, 7461, 7596, 8290, 9495, 9948, 12435, 12660, 14922, 16580, 18990, 24870, 29844, 37305, 37980, 49740, 74610, 149220, 174919, 349838, 524757, 699676, 874595, 1049514, 1574271, 1749190, 2099028, 2623785, 3148542, 3498380, 5247570, 6297084, 7871355, 10495140, 15742710, 31485420]

約数ペア:

[(1, 31485420), (2, 15742710), (3, 10495140), (4, 7871355), (5, 6297084), (6, 5247570), (9, 3498380), (10, 3148542), (12, 2623785), (15, 2099028), (18, 1749190), (20, 1574271), (30, 1049514), (36, 874595), (45, 699676), (60, 524757), (90, 349838), (180, 174919), (211, 149220), (422, 74610), (633, 49740), (829, 37980), (844, 37305), (1055, 29844), (1266, 24870), (1658, 18990), (1899, 16580), (2110, 14922), (2487, 12660), (2532, 12435), (3165, 9948), (3316, 9495), (3798, 8290), (4145, 7596), (4220, 7461), (4974, 6330)]