81291262

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{197}}^1\times {\mathrm{269}}^1$

素因数の和:540

約数の個数: 32

約数和(自身を含む): 134719200

約数和(自身を除く): 53427938

約数列:

[1, 2, 13, 26, 59, 118, 197, 269, 394, 538, 767, 1534, 2561, 3497, 5122, 6994, 11623, 15871, 23246, 31742, 52993, 105986, 151099, 206323, 302198, 412646, 688909, 1377818, 3126587, 6253174, 40645631, 81291262]

約数ペア:

[(1, 81291262), (2, 40645631), (13, 6253174), (26, 3126587), (59, 1377818), (118, 688909), (197, 412646), (269, 302198), (394, 206323), (538, 151099), (767, 105986), (1534, 52993), (2561, 31742), (3497, 23246), (5122, 15871), (6994, 11623)]