2064456440

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{17657}}^1$

素因数の和:17784

約数の個数: 64

約数和(自身を含む): 4831228800

約数和(自身を除く): 2766772360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 79, 148, 158, 185, 296, 316, 370, 395, 632, 740, 790, 1480, 1580, 2923, 3160, 5846, 11692, 14615, 17657, 23384, 29230, 35314, 58460, 70628, 88285, 116920, 141256, 176570, 353140, 653309, 706280, 1306618, 1394903, 2613236, 2789806, 3266545, 5226472, 5579612, 6533090, 6974515, 11159224, 13066180, 13949030, 26132360, 27898060, 51611411, 55796120, 103222822, 206445644, 258057055, 412891288, 516114110, 1032228220, 2064456440]

約数ペア:

[(1, 2064456440), (2, 1032228220), (4, 516114110), (5, 412891288), (8, 258057055), (10, 206445644), (20, 103222822), (37, 55796120), (40, 51611411), (74, 27898060), (79, 26132360), (148, 13949030), (158, 13066180), (185, 11159224), (296, 6974515), (316, 6533090), (370, 5579612), (395, 5226472), (632, 3266545), (740, 2789806), (790, 2613236), (1480, 1394903), (1580, 1306618), (2923, 706280), (3160, 653309), (5846, 353140), (11692, 176570), (14615, 141256), (17657, 116920), (23384, 88285), (29230, 70628), (35314, 58460)]