721313385

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{12049}}^1$

素因数の和:12377

約数の個数: 32

約数和(自身を含む): 1247030400

約数和(自身を除く): 525717015

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 307, 921, 1535, 3991, 4605, 11973, 12049, 19955, 36147, 59865, 60245, 156637, 180735, 469911, 783185, 2349555, 3699043, 11097129, 18495215, 48087559, 55485645, 144262677, 240437795, 721313385]

約数ペア:

[(1, 721313385), (3, 240437795), (5, 144262677), (13, 55485645), (15, 48087559), (39, 18495215), (65, 11097129), (195, 3699043), (307, 2349555), (921, 783185), (1535, 469911), (3991, 180735), (4605, 156637), (11973, 60245), (12049, 59865), (19955, 36147)]