28687620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36779}}^1$

素因数の和:36804

約数の個数: 48

約数和(自身を含む): 86506560

約数和(自身を除く): 57818940

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, 36779, 73558, 110337, 147116, 183895, 220674, 367790, 441348, 478127, 551685, 735580, 956254, 1103370, 1434381, 1912508, 2206740, 2390635, 2868762, 4781270, 5737524, 7171905, 9562540, 14343810, 28687620]

約数ペア:

[(1, 28687620), (2, 14343810), (3, 9562540), (4, 7171905), (5, 5737524), (6, 4781270), (10, 2868762), (12, 2390635), (13, 2206740), (15, 1912508), (20, 1434381), (26, 1103370), (30, 956254), (39, 735580), (52, 551685), (60, 478127), (65, 441348), (78, 367790), (130, 220674), (156, 183895), (195, 147116), (260, 110337), (390, 73558), (780, 36779)]