20548385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{991}}^1$

素因数の和:1049

約数の個数: 32

約数和(自身を含む): 29998080

約数和(自身を除く): 9449695

約数列:

[1, 5, 11, 13, 29, 55, 65, 143, 145, 319, 377, 715, 991, 1595, 1885, 4147, 4955, 10901, 12883, 20735, 28739, 54505, 64415, 141713, 143695, 316129, 373607, 708565, 1580645, 1868035, 4109677, 20548385]

約数ペア:

[(1, 20548385), (5, 4109677), (11, 1868035), (13, 1580645), (29, 708565), (55, 373607), (65, 316129), (143, 143695), (145, 141713), (319, 64415), (377, 54505), (715, 28739), (991, 20735), (1595, 12883), (1885, 10901), (4147, 4955)]