20017520

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{4241}}^1$

素因数の和:4313

約数の個数: 40

約数和(自身を含む): 47340720

約数和(自身を除く): 27323200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 4241, 4720, 8482, 16964, 21205, 33928, 42410, 67856, 84820, 169640, 250219, 339280, 500438, 1000876, 1251095, 2001752, 2502190, 4003504, 5004380, 10008760, 20017520]

約数ペア:

[(1, 20017520), (2, 10008760), (4, 5004380), (5, 4003504), (8, 2502190), (10, 2001752), (16, 1251095), (20, 1000876), (40, 500438), (59, 339280), (80, 250219), (118, 169640), (236, 84820), (295, 67856), (472, 42410), (590, 33928), (944, 21205), (1180, 16964), (2360, 8482), (4241, 4720)]