80728011

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{409}}^1$

素因数の和:676

約数の個数: 48

約数和(自身を含む): 144464320

約数和(自身を除く): 63736309

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 241, 273, 409, 723, 819, 1227, 1687, 2169, 2863, 3133, 3681, 5061, 5317, 8589, 9399, 15183, 15951, 21931, 25767, 28197, 37219, 47853, 65793, 98569, 111657, 197379, 295707, 334971, 689983, 887121, 1281397, 2069949, 3844191, 6209847, 8969779, 11532573, 26909337, 80728011]

約数ペア:

[(1, 80728011), (3, 26909337), (7, 11532573), (9, 8969779), (13, 6209847), (21, 3844191), (39, 2069949), (63, 1281397), (91, 887121), (117, 689983), (241, 334971), (273, 295707), (409, 197379), (723, 111657), (819, 98569), (1227, 65793), (1687, 47853), (2169, 37219), (2863, 28197), (3133, 25767), (3681, 21931), (5061, 15951), (5317, 15183), (8589, 9399)]