28376260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128983}}^1$

素因数の和:129003

約数の個数: 24

約数和(自身を含む): 65007936

約数和(自身を除く): 36631676

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 128983, 257966, 515932, 644915, 1289830, 1418813, 2579660, 2837626, 5675252, 7094065, 14188130, 28376260]

約数ペア:

[(1, 28376260), (2, 14188130), (4, 7094065), (5, 5675252), (10, 2837626), (11, 2579660), (20, 1418813), (22, 1289830), (44, 644915), (55, 515932), (110, 257966), (220, 128983)]