20945150

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{13513}}^1$

素因数の和:13556

約数の個数: 24

約数和(自身を含む): 40217664

約数和(自身を除く): 19272514

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 775, 1550, 13513, 27026, 67565, 135130, 337825, 418903, 675650, 837806, 2094515, 4189030, 10472575, 20945150]

約数ペア:

[(1, 20945150), (2, 10472575), (5, 4189030), (10, 2094515), (25, 837806), (31, 675650), (50, 418903), (62, 337825), (155, 135130), (310, 67565), (775, 27026), (1550, 13513)]