28688790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73561}}^1$

素因数の和:73584

約数の個数: 32

約数和(自身を含む): 74150496

約数和(自身を除く): 45461706

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 73561, 147122, 220683, 367805, 441366, 735610, 956293, 1103415, 1912586, 2206830, 2868879, 4781465, 5737758, 9562930, 14344395, 28688790]

約数ペア:

[(1, 28688790), (2, 14344395), (3, 9562930), (5, 5737758), (6, 4781465), (10, 2868879), (13, 2206830), (15, 1912586), (26, 1103415), (30, 956293), (39, 735610), (65, 441366), (78, 367805), (130, 220683), (195, 147122), (390, 73561)]