20145474

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{457}}^1$

素因数の和:575

約数の個数: 48

約数和(自身を含む): 45726720

約数和(自身を除く): 25581246

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 79, 93, 158, 186, 237, 279, 457, 474, 558, 711, 914, 1371, 1422, 2449, 2742, 4113, 4898, 7347, 8226, 14167, 14694, 22041, 28334, 36103, 42501, 44082, 72206, 85002, 108309, 127503, 216618, 255006, 324927, 649854, 1119193, 2238386, 3357579, 6715158, 10072737, 20145474]

約数ペア:

[(1, 20145474), (2, 10072737), (3, 6715158), (6, 3357579), (9, 2238386), (18, 1119193), (31, 649854), (62, 324927), (79, 255006), (93, 216618), (158, 127503), (186, 108309), (237, 85002), (279, 72206), (457, 44082), (474, 42501), (558, 36103), (711, 28334), (914, 22041), (1371, 14694), (1422, 14167), (2449, 8226), (2742, 7347), (4113, 4898)]