2780452840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{6319211}}^1$

素因数の和:6319233

約数の個数: 32

約数和(自身を含む): 6824748960

約数和(自身を除く): 4044296120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 6319211, 12638422, 25276844, 31596055, 50553688, 63192110, 69511321, 126384220, 139022642, 252768440, 278045284, 347556605, 556090568, 695113210, 1390226420, 2780452840]

約数ペア:

[(1, 2780452840), (2, 1390226420), (4, 695113210), (5, 556090568), (8, 347556605), (10, 278045284), (11, 252768440), (20, 139022642), (22, 126384220), (40, 69511321), (44, 63192110), (55, 50553688), (88, 31596055), (110, 25276844), (220, 12638422), (440, 6319211)]