25838380

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{21179}}^1$

素因数の和:21249

約数の個数: 24

約数和(自身を含む): 55152720

約数和(自身を除く): 29314340

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 21179, 42358, 84716, 105895, 211790, 423580, 1291919, 2583838, 5167676, 6459595, 12919190, 25838380]

約数ペア:

[(1, 25838380), (2, 12919190), (4, 6459595), (5, 5167676), (10, 2583838), (20, 1291919), (61, 423580), (122, 211790), (244, 105895), (305, 84716), (610, 42358), (1220, 21179)]