1931507890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{781987}}^1$

素因数の和:782026

約数の個数: 32

約数和(自身を含む): 3941219520

約数和(自身を除く): 2009711630

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 781987, 1563974, 3909935, 7819870, 10165831, 14857753, 20331662, 29715506, 50829155, 74288765, 101658310, 148577530, 193150789, 386301578, 965753945, 1931507890]

約数ペア:

[(1, 1931507890), (2, 965753945), (5, 386301578), (10, 193150789), (13, 148577530), (19, 101658310), (26, 74288765), (38, 50829155), (65, 29715506), (95, 20331662), (130, 14857753), (190, 10165831), (247, 7819870), (494, 3909935), (1235, 1563974), (2470, 781987)]