71315985

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{15901}}^1$

素因数の和:15945

約数の個数: 32

約数和(自身を含む): 128233728

約数和(自身を除く): 56917743

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 4485, 15901, 47703, 79505, 206713, 238515, 365723, 620139, 1033565, 1097169, 1828615, 3100695, 4754399, 5485845, 14263197, 23771995, 71315985]

約数ペア:

[(1, 71315985), (3, 23771995), (5, 14263197), (13, 5485845), (15, 4754399), (23, 3100695), (39, 1828615), (65, 1097169), (69, 1033565), (115, 620139), (195, 365723), (299, 238515), (345, 206713), (897, 79505), (1495, 47703), (4485, 15901)]