131718990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{337741}}^1$

素因数の和:337764

約数の個数: 32

約数和(自身を含む): 340443936

約数和(自身を除く): 208724946

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 337741, 675482, 1013223, 1688705, 2026446, 3377410, 4390633, 5066115, 8781266, 10132230, 13171899, 21953165, 26343798, 43906330, 65859495, 131718990]

約数ペア:

[(1, 131718990), (2, 65859495), (3, 43906330), (5, 26343798), (6, 21953165), (10, 13171899), (13, 10132230), (15, 8781266), (26, 5066115), (30, 4390633), (39, 3377410), (65, 2026446), (78, 1688705), (130, 1013223), (195, 675482), (390, 337741)]