20808515505

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{255523}}^1$

素因数の和:255681

約数の個数: 32

約数和(自身を含む): 34219774080

約数和(自身を除く): 13411258575

約数列:

[1, 3, 5, 15, 61, 89, 183, 267, 305, 445, 915, 1335, 5429, 16287, 27145, 81435, 255523, 766569, 1277615, 3832845, 15586903, 22741547, 46760709, 68224641, 77934515, 113707735, 233803545, 341123205, 1387234367, 4161703101, 6936171835, 20808515505]

約数ペア:

[(1, 20808515505), (3, 6936171835), (5, 4161703101), (15, 1387234367), (61, 341123205), (89, 233803545), (183, 113707735), (267, 77934515), (305, 68224641), (445, 46760709), (915, 22741547), (1335, 15586903), (5429, 3832845), (16287, 1277615), (27145, 766569), (81435, 255523)]