19929320

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4933}}^1$

素因数の和:5045

約数の個数: 32

約数和(自身を含む): 45294120

約数和(自身を除く): 25364800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 4933, 9866, 19732, 24665, 39464, 49330, 98660, 197320, 498233, 996466, 1992932, 2491165, 3985864, 4982330, 9964660, 19929320]

約数ペア:

[(1, 19929320), (2, 9964660), (4, 4982330), (5, 3985864), (8, 2491165), (10, 1992932), (20, 996466), (40, 498233), (101, 197320), (202, 98660), (404, 49330), (505, 39464), (808, 24665), (1010, 19732), (2020, 9866), (4040, 4933)]