129985480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{104827}}^1$

素因数の和:104869

約数の個数: 32

約数和(自身を含む): 301904640

約数和(自身を除く): 171919160

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 104827, 209654, 419308, 524135, 838616, 1048270, 2096540, 3249637, 4193080, 6499274, 12998548, 16248185, 25997096, 32496370, 64992740, 129985480]

約数ペア:

[(1, 129985480), (2, 64992740), (4, 32496370), (5, 25997096), (8, 16248185), (10, 12998548), (20, 6499274), (31, 4193080), (40, 3249637), (62, 2096540), (124, 1048270), (155, 838616), (248, 524135), (310, 419308), (620, 209654), (1240, 104827)]