156928998220

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{643}}^1\times {\mathrm{111953}}^1$

素因数の和:112714

約数の個数: 48

約数和(自身を含む): 333094497120

約数和(自身を除く): 176165498900

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 643, 1090, 1286, 2180, 2572, 3215, 6430, 12860, 70087, 111953, 140174, 223906, 280348, 350435, 447812, 559765, 700870, 1119530, 1401740, 2239060, 12202877, 24405754, 48811508, 61014385, 71985779, 122028770, 143971558, 244057540, 287943116, 359928895, 719857790, 1439715580, 7846449911, 15692899822, 31385799644, 39232249555, 78464499110, 156928998220]

約数ペア:

[(1, 156928998220), (2, 78464499110), (4, 39232249555), (5, 31385799644), (10, 15692899822), (20, 7846449911), (109, 1439715580), (218, 719857790), (436, 359928895), (545, 287943116), (643, 244057540), (1090, 143971558), (1286, 122028770), (2180, 71985779), (2572, 61014385), (3215, 48811508), (6430, 24405754), (12860, 12202877), (70087, 2239060), (111953, 1401740), (140174, 1119530), (223906, 700870), (280348, 559765), (350435, 447812)]