820157128

素因数分解:

$2^3\times 7^1\times {\mathrm{3739}}^1\times {\mathrm{3917}}^1$

素因数の和:7669

約数の個数: 32

約数和(自身を含む): 1758398400

約数和(自身を除く): 938241272

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 3739, 3917, 7478, 7834, 14956, 15668, 26173, 27419, 29912, 31336, 52346, 54838, 104692, 109676, 209384, 219352, 14645663, 29291326, 58582652, 102519641, 117165304, 205039282, 410078564, 820157128]

約数ペア:

[(1, 820157128), (2, 410078564), (4, 205039282), (7, 117165304), (8, 102519641), (14, 58582652), (28, 29291326), (56, 14645663), (3739, 219352), (3917, 209384), (7478, 109676), (7834, 104692), (14956, 54838), (15668, 52346), (26173, 31336), (27419, 29912)]