72780890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79979}}^1$

素因数の和:80006

約数の個数: 32

約数和(自身を含む): 161239680

約数和(自身を除く): 88458790

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 79979, 159958, 399895, 559853, 799790, 1039727, 1119706, 2079454, 2799265, 5198635, 5598530, 7278089, 10397270, 14556178, 36390445, 72780890]

約数ペア:

[(1, 72780890), (2, 36390445), (5, 14556178), (7, 10397270), (10, 7278089), (13, 5598530), (14, 5198635), (26, 2799265), (35, 2079454), (65, 1119706), (70, 1039727), (91, 799790), (130, 559853), (182, 399895), (455, 159958), (910, 79979)]