338890040

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{51977}}^1$

素因数の和:52151

約数の個数: 32

約数和(自身を含む): 767195280

約数和(自身を除く): 428305240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 51977, 103954, 207908, 259885, 415816, 519770, 1039540, 2079080, 8472251, 16944502, 33889004, 42361255, 67778008, 84722510, 169445020, 338890040]

約数ペア:

[(1, 338890040), (2, 169445020), (4, 84722510), (5, 67778008), (8, 42361255), (10, 33889004), (20, 16944502), (40, 8472251), (163, 2079080), (326, 1039540), (652, 519770), (815, 415816), (1304, 259885), (1630, 207908), (3260, 103954), (6520, 51977)]