128857384

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{229}}^1\times {\mathrm{1901}}^1$

素因数の和:2173

約数の個数: 32

約数和(自身を含む): 249352200

約数和(自身を除く): 120494816

約数列:

[1, 2, 4, 8, 37, 74, 148, 229, 296, 458, 916, 1832, 1901, 3802, 7604, 8473, 15208, 16946, 33892, 67784, 70337, 140674, 281348, 435329, 562696, 870658, 1741316, 3482632, 16107173, 32214346, 64428692, 128857384]

約数ペア:

[(1, 128857384), (2, 64428692), (4, 32214346), (8, 16107173), (37, 3482632), (74, 1741316), (148, 870658), (229, 562696), (296, 435329), (458, 281348), (916, 140674), (1832, 70337), (1901, 67784), (3802, 33892), (7604, 16946), (8473, 15208)]