20792328505

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{208121}}^1$

素因数の和:208221

約数の個数: 32

約数和(自身を含む): 28321241760

約数和(自身を除く): 7528913255

約数列:

[1, 5, 13, 29, 53, 65, 145, 265, 377, 689, 1537, 1885, 3445, 7685, 19981, 99905, 208121, 1040605, 2705573, 6035509, 11030413, 13527865, 30177545, 55152065, 78461617, 143395369, 319881977, 392308085, 716976845, 1599409885, 4158465701, 20792328505]

約数ペア:

[(1, 20792328505), (5, 4158465701), (13, 1599409885), (29, 716976845), (53, 392308085), (65, 319881977), (145, 143395369), (265, 78461617), (377, 55152065), (689, 30177545), (1537, 13527865), (1885, 11030413), (3445, 6035509), (7685, 2705573), (19981, 1040605), (99905, 208121)]