28291495

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 37319040

約数和(自身を除く): 9027545

約数列:

[1, 5, 23, 37, 61, 109, 115, 185, 305, 545, 851, 1403, 2257, 2507, 4033, 4255, 6649, 7015, 11285, 12535, 20165, 33245, 51911, 92759, 152927, 246013, 259555, 463795, 764635, 1230065, 5658299, 28291495]

約数ペア:

[(1, 28291495), (5, 5658299), (23, 1230065), (37, 764635), (61, 463795), (109, 259555), (115, 246013), (185, 152927), (305, 92759), (545, 51911), (851, 33245), (1403, 20165), (2257, 12535), (2507, 11285), (4033, 7015), (4255, 6649)]