81655300

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{761}}^1$

素因数の和:841

約数の個数: 72

約数和(自身を含む): 188503560

約数和(自身を除く): 106848260

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 37, 50, 58, 74, 100, 116, 145, 148, 185, 290, 370, 580, 725, 740, 761, 925, 1073, 1450, 1522, 1850, 2146, 2900, 3044, 3700, 3805, 4292, 5365, 7610, 10730, 15220, 19025, 21460, 22069, 26825, 28157, 38050, 44138, 53650, 56314, 76100, 88276, 107300, 110345, 112628, 140785, 220690, 281570, 441380, 551725, 563140, 703925, 816553, 1103450, 1407850, 1633106, 2206900, 2815700, 3266212, 4082765, 8165530, 16331060, 20413825, 40827650, 81655300]

約数ペア:

[(1, 81655300), (2, 40827650), (4, 20413825), (5, 16331060), (10, 8165530), (20, 4082765), (25, 3266212), (29, 2815700), (37, 2206900), (50, 1633106), (58, 1407850), (74, 1103450), (100, 816553), (116, 703925), (145, 563140), (148, 551725), (185, 441380), (290, 281570), (370, 220690), (580, 140785), (725, 112628), (740, 110345), (761, 107300), (925, 88276), (1073, 76100), (1450, 56314), (1522, 53650), (1850, 44138), (2146, 38050), (2900, 28157), (3044, 26825), (3700, 22069), (3805, 21460), (4292, 19025), (5365, 15220), (7610, 10730)]