647907990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{347}}^1\times {\mathrm{571}}^1$

素因数の和:1037

約数の個数: 64

約数和(自身を含む): 1576523520

約数和(自身を除く): 928615530

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 109, 218, 327, 347, 545, 571, 654, 694, 1041, 1090, 1142, 1635, 1713, 1735, 2082, 2855, 3270, 3426, 3470, 5205, 5710, 8565, 10410, 17130, 37823, 62239, 75646, 113469, 124478, 186717, 189115, 198137, 226938, 311195, 373434, 378230, 396274, 567345, 594411, 622390, 933585, 990685, 1134690, 1188822, 1867170, 1981370, 2972055, 5944110, 21596933, 43193866, 64790799, 107984665, 129581598, 215969330, 323953995, 647907990]

約数ペア:

[(1, 647907990), (2, 323953995), (3, 215969330), (5, 129581598), (6, 107984665), (10, 64790799), (15, 43193866), (30, 21596933), (109, 5944110), (218, 2972055), (327, 1981370), (347, 1867170), (545, 1188822), (571, 1134690), (654, 990685), (694, 933585), (1041, 622390), (1090, 594411), (1142, 567345), (1635, 396274), (1713, 378230), (1735, 373434), (2082, 311195), (2855, 226938), (3270, 198137), (3426, 189115), (3470, 186717), (5205, 124478), (5710, 113469), (8565, 75646), (10410, 62239), (17130, 37823)]