164420238520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{100256243}}^1$

素因数の和:100256295

約数の個数: 32

約数和(自身を含む): 378968602320

約数和(自身を除く): 214548363800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 100256243, 200512486, 401024972, 501281215, 802049944, 1002562430, 2005124860, 4010249720, 4110505963, 8221011926, 16442023852, 20552529815, 32884047704, 41105059630, 82210119260, 164420238520]

約数ペア:

[(1, 164420238520), (2, 82210119260), (4, 41105059630), (5, 32884047704), (8, 20552529815), (10, 16442023852), (20, 8221011926), (40, 4110505963), (41, 4010249720), (82, 2005124860), (164, 1002562430), (205, 802049944), (328, 501281215), (410, 401024972), (820, 200512486), (1640, 100256243)]