128814440

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{189433}}^1$

素因数の和:189461

約数の個数: 32

約数和(自身を含む): 306883080

約数和(自身を除く): 178068640

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 189433, 378866, 757732, 947165, 1515464, 1894330, 3220361, 3788660, 6440722, 7577320, 12881444, 16101805, 25762888, 32203610, 64407220, 128814440]

約数ペア:

[(1, 128814440), (2, 64407220), (4, 32203610), (5, 25762888), (8, 16101805), (10, 12881444), (17, 7577320), (20, 6440722), (34, 3788660), (40, 3220361), (68, 1894330), (85, 1515464), (136, 947165), (170, 757732), (340, 378866), (680, 189433)]