225440840

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{26711}}^1$

素因数の和:26933

約数の個数: 32

約数和(自身を含む): 509664960

約数和(自身を除く): 284224120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 8440, 26711, 53422, 106844, 133555, 213688, 267110, 534220, 1068440, 5636021, 11272042, 22544084, 28180105, 45088168, 56360210, 112720420, 225440840]

約数ペア:

[(1, 225440840), (2, 112720420), (4, 56360210), (5, 45088168), (8, 28180105), (10, 22544084), (20, 11272042), (40, 5636021), (211, 1068440), (422, 534220), (844, 267110), (1055, 213688), (1688, 133555), (2110, 106844), (4220, 53422), (8440, 26711)]