440649320

素因数分解:

$2^3\times 5^1\times {\mathrm{2441}}^1\times {\mathrm{4513}}^1$

素因数の和:6965

約数の個数: 32

約数和(自身を含む): 992086920

約数和(自身を除く): 551437600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2441, 4513, 4882, 9026, 9764, 12205, 18052, 19528, 22565, 24410, 36104, 45130, 48820, 90260, 97640, 180520, 11016233, 22032466, 44064932, 55081165, 88129864, 110162330, 220324660, 440649320]

約数ペア:

[(1, 440649320), (2, 220324660), (4, 110162330), (5, 88129864), (8, 55081165), (10, 44064932), (20, 22032466), (40, 11016233), (2441, 180520), (4513, 97640), (4882, 90260), (9026, 48820), (9764, 45130), (12205, 36104), (18052, 24410), (19528, 22565)]