20458920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{5879}}^1$

素因数の和:5922

約数の個数: 64

約数和(自身を含む): 63504000

約数和(自身を除く): 43045080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 60, 87, 116, 120, 145, 174, 232, 290, 348, 435, 580, 696, 870, 1160, 1740, 3480, 5879, 11758, 17637, 23516, 29395, 35274, 47032, 58790, 70548, 88185, 117580, 141096, 170491, 176370, 235160, 340982, 352740, 511473, 681964, 705480, 852455, 1022946, 1363928, 1704910, 2045892, 2557365, 3409820, 4091784, 5114730, 6819640, 10229460, 20458920]

約数ペア:

[(1, 20458920), (2, 10229460), (3, 6819640), (4, 5114730), (5, 4091784), (6, 3409820), (8, 2557365), (10, 2045892), (12, 1704910), (15, 1363928), (20, 1022946), (24, 852455), (29, 705480), (30, 681964), (40, 511473), (58, 352740), (60, 340982), (87, 235160), (116, 176370), (120, 170491), (145, 141096), (174, 117580), (232, 88185), (290, 70548), (348, 58790), (435, 47032), (580, 35274), (696, 29395), (870, 23516), (1160, 17637), (1740, 11758), (3480, 5879)]