720046821

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{123911}}^1$

素因数の和:124076

約数の個数: 16

約数和(自身を含む): 1040860800

約数和(自身を除く): 320813979

約数列:

[1, 3, 13, 39, 149, 447, 1937, 5811, 123911, 371733, 1610843, 4832529, 18462739, 55388217, 240015607, 720046821]

約数ペア:

[(1, 720046821), (3, 240015607), (13, 55388217), (39, 18462739), (149, 4832529), (447, 1610843), (1937, 371733), (5811, 123911)]