64210100

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{15661}}^1$

素因数の和:15716

約数の個数: 36

約数和(自身を含む): 142743468

約数和(自身を除く): 78533368

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 15661, 31322, 62644, 78305, 156610, 313220, 391525, 642101, 783050, 1284202, 1566100, 2568404, 3210505, 6421010, 12842020, 16052525, 32105050, 64210100]

約数ペア:

[(1, 64210100), (2, 32105050), (4, 16052525), (5, 12842020), (10, 6421010), (20, 3210505), (25, 2568404), (41, 1566100), (50, 1284202), (82, 783050), (100, 642101), (164, 391525), (205, 313220), (410, 156610), (820, 78305), (1025, 62644), (2050, 31322), (4100, 15661)]