8702840

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{2243}}^1$

素因数の和:2351

約数の個数: 32

約数和(自身を含む): 19792080

約数和(自身を除く): 11089240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 2243, 3880, 4486, 8972, 11215, 17944, 22430, 44860, 89720, 217571, 435142, 870284, 1087855, 1740568, 2175710, 4351420, 8702840]

約数ペア:

[(1, 8702840), (2, 4351420), (4, 2175710), (5, 1740568), (8, 1087855), (10, 870284), (20, 435142), (40, 217571), (97, 89720), (194, 44860), (388, 22430), (485, 17944), (776, 11215), (970, 8972), (1940, 4486), (2243, 3880)]