723248920

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{211}}^1\times {\mathrm{1279}}^1$

素因数の和:1568

約数の個数: 64

約数和(自身を含む): 1660723200

約数和(自身を除く): 937474280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 211, 268, 335, 422, 536, 670, 844, 1055, 1279, 1340, 1688, 2110, 2558, 2680, 4220, 5116, 6395, 8440, 10232, 12790, 14137, 25580, 28274, 51160, 56548, 70685, 85693, 113096, 141370, 171386, 269869, 282740, 342772, 428465, 539738, 565480, 685544, 856930, 1079476, 1349345, 1713860, 2158952, 2698690, 3427720, 5397380, 10794760, 18081223, 36162446, 72324892, 90406115, 144649784, 180812230, 361624460, 723248920]

約数ペア:

[(1, 723248920), (2, 361624460), (4, 180812230), (5, 144649784), (8, 90406115), (10, 72324892), (20, 36162446), (40, 18081223), (67, 10794760), (134, 5397380), (211, 3427720), (268, 2698690), (335, 2158952), (422, 1713860), (536, 1349345), (670, 1079476), (844, 856930), (1055, 685544), (1279, 565480), (1340, 539738), (1688, 428465), (2110, 342772), (2558, 282740), (2680, 269869), (4220, 171386), (5116, 141370), (6395, 113096), (8440, 85693), (10232, 70685), (12790, 56548), (14137, 51160), (25580, 28274)]