20723980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{35731}}^1$

素因数の和:35769

約数の個数: 24

約数和(自身を含む): 45022320

約数和(自身を除く): 24298340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 35731, 71462, 142924, 178655, 357310, 714620, 1036199, 2072398, 4144796, 5180995, 10361990, 20723980]

約数ペア:

[(1, 20723980), (2, 10361990), (4, 5180995), (5, 4144796), (10, 2072398), (20, 1036199), (29, 714620), (58, 357310), (116, 178655), (145, 142924), (290, 71462), (580, 35731)]