678990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1741}}^1$

素因数の和:1764

約数の個数: 32

約数和(自身を含む): 1755936

約数和(自身を除く): 1076946

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 1741, 3482, 5223, 8705, 10446, 17410, 22633, 26115, 45266, 52230, 67899, 113165, 135798, 226330, 339495, 678990]

約数ペア:

[(1, 678990), (2, 339495), (3, 226330), (5, 135798), (6, 113165), (10, 67899), (13, 52230), (15, 45266), (26, 26115), (30, 22633), (39, 17410), (65, 10446), (78, 8705), (130, 5223), (195, 3482), (390, 1741)]