19428370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{751}}^1$

素因数の和:970

約数の個数: 32

約数和(自身を含む): 37900800

約数和(自身を除く): 18472430

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 199, 398, 751, 995, 1502, 1990, 2587, 3755, 5174, 7510, 9763, 12935, 19526, 25870, 48815, 97630, 149449, 298898, 747245, 1494490, 1942837, 3885674, 9714185, 19428370]

約数ペア:

[(1, 19428370), (2, 9714185), (5, 3885674), (10, 1942837), (13, 1494490), (26, 747245), (65, 298898), (130, 149449), (199, 97630), (398, 48815), (751, 25870), (995, 19526), (1502, 12935), (1990, 9763), (2587, 7510), (3755, 5174)]