81986398

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1931}}^1$

素因数の和:2040

約数の個数: 32

約数和(自身を含む): 140216832

約数和(自身を除く): 58230434

約数列:

[1, 2, 13, 23, 26, 46, 71, 142, 299, 598, 923, 1633, 1846, 1931, 3266, 3862, 21229, 25103, 42458, 44413, 50206, 88826, 137101, 274202, 577369, 1154738, 1782313, 3153323, 3564626, 6306646, 40993199, 81986398]

約数ペア:

[(1, 81986398), (2, 40993199), (13, 6306646), (23, 3564626), (26, 3153323), (46, 1782313), (71, 1154738), (142, 577369), (299, 274202), (598, 137101), (923, 88826), (1633, 50206), (1846, 44413), (1931, 42458), (3266, 25103), (3862, 21229)]