18946100

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{4621}}^1$

素因数の和:4676

約数の個数: 36

約数和(自身を含む): 42124908

約数和(自身を除く): 23178808

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 4621, 9242, 18484, 23105, 46210, 92420, 115525, 189461, 231050, 378922, 462100, 757844, 947305, 1894610, 3789220, 4736525, 9473050, 18946100]

約数ペア:

[(1, 18946100), (2, 9473050), (4, 4736525), (5, 3789220), (10, 1894610), (20, 947305), (25, 757844), (41, 462100), (50, 378922), (82, 231050), (100, 189461), (164, 115525), (205, 92420), (410, 46210), (820, 23105), (1025, 18484), (2050, 9242), (4100, 4621)]