251330690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{7351}}^1$

素因数の和:7634

約数の個数: 32

約数和(自身を含む): 489113856

約数和(自身を除く): 237783166

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 263, 526, 1315, 2630, 3419, 6838, 7351, 14702, 17095, 34190, 36755, 73510, 95563, 191126, 477815, 955630, 1933313, 3866626, 9666565, 19333130, 25133069, 50266138, 125665345, 251330690]

約数ペア:

[(1, 251330690), (2, 125665345), (5, 50266138), (10, 25133069), (13, 19333130), (26, 9666565), (65, 3866626), (130, 1933313), (263, 955630), (526, 477815), (1315, 191126), (2630, 95563), (3419, 73510), (6838, 36755), (7351, 34190), (14702, 17095)]