28363940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{563}}^1$

素因数の和:812

約数の個数: 48

約数和(自身を含む): 65378880

約数和(自身を除く): 37014940

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 229, 458, 563, 916, 1126, 1145, 2252, 2290, 2519, 2815, 4580, 5038, 5630, 6193, 10076, 11260, 12386, 12595, 24772, 25190, 30965, 50380, 61930, 123860, 128927, 257854, 515708, 644635, 1289270, 1418197, 2578540, 2836394, 5672788, 7090985, 14181970, 28363940]

約数ペア:

[(1, 28363940), (2, 14181970), (4, 7090985), (5, 5672788), (10, 2836394), (11, 2578540), (20, 1418197), (22, 1289270), (44, 644635), (55, 515708), (110, 257854), (220, 128927), (229, 123860), (458, 61930), (563, 50380), (916, 30965), (1126, 25190), (1145, 24772), (2252, 12595), (2290, 12386), (2519, 11260), (2815, 10076), (4580, 6193), (5038, 5630)]