165355540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{7523}}^1$

素因数の和:7696

約数の個数: 48

約数和(自身を含む): 399434112

約数和(自身を除く): 234078572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1099, 1570, 2198, 3140, 4396, 5495, 7523, 10990, 15046, 21980, 30092, 37615, 52661, 75230, 105322, 150460, 210644, 263305, 526610, 1053220, 1181111, 2362222, 4724444, 5905555, 8267777, 11811110, 16535554, 23622220, 33071108, 41338885, 82677770, 165355540]

約数ペア:

[(1, 165355540), (2, 82677770), (4, 41338885), (5, 33071108), (7, 23622220), (10, 16535554), (14, 11811110), (20, 8267777), (28, 5905555), (35, 4724444), (70, 2362222), (140, 1181111), (157, 1053220), (314, 526610), (628, 263305), (785, 210644), (1099, 150460), (1570, 105322), (2198, 75230), (3140, 52661), (4396, 37615), (5495, 30092), (7523, 21980), (10990, 15046)]