16978021220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2579}}^1\times {\mathrm{3259}}^1$

素因数の和:5948

約数の個数: 48

約数和(自身を含む): 36031867200

約数和(自身を除く): 19053845980

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 2579, 3259, 5158, 6518, 10316, 12895, 13036, 16295, 25790, 32590, 51580, 65180, 260479, 329159, 520958, 658318, 1041916, 1302395, 1316636, 1645795, 2604790, 3291590, 5209580, 6583180, 8404961, 16809922, 33619844, 42024805, 84049610, 168099220, 848901061, 1697802122, 3395604244, 4244505305, 8489010610, 16978021220]

約数ペア:

[(1, 16978021220), (2, 8489010610), (4, 4244505305), (5, 3395604244), (10, 1697802122), (20, 848901061), (101, 168099220), (202, 84049610), (404, 42024805), (505, 33619844), (1010, 16809922), (2020, 8404961), (2579, 6583180), (3259, 5209580), (5158, 3291590), (6518, 2604790), (10316, 1645795), (12895, 1316636), (13036, 1302395), (16295, 1041916), (25790, 658318), (32590, 520958), (51580, 329159), (65180, 260479)]