2021163280

素因数分解:

$2^4\times 5^1\times {\mathrm{1399}}^1\times {\mathrm{18059}}^1$

素因数の和:19471

約数の個数: 40

約数和(自身を含む): 4702824000

約数和(自身を除く): 2681660720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1399, 2798, 5596, 6995, 11192, 13990, 18059, 22384, 27980, 36118, 55960, 72236, 90295, 111920, 144472, 180590, 288944, 361180, 722360, 1444720, 25264541, 50529082, 101058164, 126322705, 202116328, 252645410, 404232656, 505290820, 1010581640, 2021163280]

約数ペア:

[(1, 2021163280), (2, 1010581640), (4, 505290820), (5, 404232656), (8, 252645410), (10, 202116328), (16, 126322705), (20, 101058164), (40, 50529082), (80, 25264541), (1399, 1444720), (2798, 722360), (5596, 361180), (6995, 288944), (11192, 180590), (13990, 144472), (18059, 111920), (22384, 90295), (27980, 72236), (36118, 55960)]