138441505

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1621}}^1$

素因数の和:1705

約数の個数: 32

約数和(自身を含む): 186854400

約数和(自身を除く): 48412895

約数列:

[1, 5, 19, 29, 31, 95, 145, 155, 551, 589, 899, 1621, 2755, 2945, 4495, 8105, 17081, 30799, 47009, 50251, 85405, 153995, 235045, 251255, 893171, 954769, 1457279, 4465855, 4773845, 7286395, 27688301, 138441505]

約数ペア:

[(1, 138441505), (5, 27688301), (19, 7286395), (29, 4773845), (31, 4465855), (95, 1457279), (145, 954769), (155, 893171), (551, 251255), (589, 235045), (899, 153995), (1621, 85405), (2755, 50251), (2945, 47009), (4495, 30799), (8105, 17081)]