257964472

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{241}}^1\times {\mathrm{1997}}^1$

素因数の和:2311

約数の個数: 32

約数和(自身を含む): 493186320

約数和(自身を除く): 235221848

約数列:

[1, 2, 4, 8, 67, 134, 241, 268, 482, 536, 964, 1928, 1997, 3994, 7988, 15976, 16147, 32294, 64588, 129176, 133799, 267598, 481277, 535196, 962554, 1070392, 1925108, 3850216, 32245559, 64491118, 128982236, 257964472]

約数ペア:

[(1, 257964472), (2, 128982236), (4, 64491118), (8, 32245559), (67, 3850216), (134, 1925108), (241, 1070392), (268, 962554), (482, 535196), (536, 481277), (964, 267598), (1928, 133799), (1997, 129176), (3994, 64588), (7988, 32294), (15976, 16147)]