81044340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103903}}^1$

素因数の和:103928

約数の個数: 48

約数和(自身を含む): 244382208

約数和(自身を除く): 163337868

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 103903, 207806, 311709, 415612, 519515, 623418, 1039030, 1246836, 1350739, 1558545, 2078060, 2701478, 3117090, 4052217, 5402956, 6234180, 6753695, 8104434, 13507390, 16208868, 20261085, 27014780, 40522170, 81044340]

約数ペア:

[(1, 81044340), (2, 40522170), (3, 27014780), (4, 20261085), (5, 16208868), (6, 13507390), (10, 8104434), (12, 6753695), (13, 6234180), (15, 5402956), (20, 4052217), (26, 3117090), (30, 2701478), (39, 2078060), (52, 1558545), (60, 1350739), (65, 1246836), (78, 1039030), (130, 623418), (156, 519515), (195, 415612), (260, 311709), (390, 207806), (780, 103903)]