256191980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{5519}}^1$

素因数の和:5750

約数の個数: 48

約数和(自身を含む): 589800960

約数和(自身を除く): 333608980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 211, 220, 422, 844, 1055, 2110, 2321, 4220, 4642, 5519, 9284, 11038, 11605, 22076, 23210, 27595, 46420, 55190, 60709, 110380, 121418, 242836, 303545, 607090, 1164509, 1214180, 2329018, 4658036, 5822545, 11645090, 12809599, 23290180, 25619198, 51238396, 64047995, 128095990, 256191980]

約数ペア:

[(1, 256191980), (2, 128095990), (4, 64047995), (5, 51238396), (10, 25619198), (11, 23290180), (20, 12809599), (22, 11645090), (44, 5822545), (55, 4658036), (110, 2329018), (211, 1214180), (220, 1164509), (422, 607090), (844, 303545), (1055, 242836), (2110, 121418), (2321, 110380), (4220, 60709), (4642, 55190), (5519, 46420), (9284, 27595), (11038, 23210), (11605, 22076)]