280410

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{719}}^1$

素因数の和:742

約数の個数: 32

約数和(自身を含む): 725760

約数和(自身を除く): 445350

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 719, 1438, 2157, 3595, 4314, 7190, 9347, 10785, 18694, 21570, 28041, 46735, 56082, 93470, 140205, 280410]

約数ペア:

[(1, 280410), (2, 140205), (3, 93470), (5, 56082), (6, 46735), (10, 28041), (13, 21570), (15, 18694), (26, 10785), (30, 9347), (39, 7190), (65, 4314), (78, 3595), (130, 2157), (195, 1438), (390, 719)]