20121650

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{13877}}^1$

素因数の和:13918

約数の個数: 24

約数和(自身を含む): 38719620

約数和(自身を除く): 18597970

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 145, 290, 725, 1450, 13877, 27754, 69385, 138770, 346925, 402433, 693850, 804866, 2012165, 4024330, 10060825, 20121650]

約数ペア:

[(1, 20121650), (2, 10060825), (5, 4024330), (10, 2012165), (25, 804866), (29, 693850), (50, 402433), (58, 346925), (145, 138770), (290, 69385), (725, 27754), (1450, 13877)]