255048920

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{130127}}^1$

素因数の和:130152

約数の個数: 48

約数和(自身を含む): 667556640

約数和(自身を除く): 412507720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 130127, 260254, 520508, 650635, 910889, 1041016, 1301270, 1821778, 2602540, 3643556, 4554445, 5205080, 6376223, 7287112, 9108890, 12752446, 18217780, 25504892, 31881115, 36435560, 51009784, 63762230, 127524460, 255048920]

約数ペア:

[(1, 255048920), (2, 127524460), (4, 63762230), (5, 51009784), (7, 36435560), (8, 31881115), (10, 25504892), (14, 18217780), (20, 12752446), (28, 9108890), (35, 7287112), (40, 6376223), (49, 5205080), (56, 4554445), (70, 3643556), (98, 2602540), (140, 1821778), (196, 1301270), (245, 1041016), (280, 910889), (392, 650635), (490, 520508), (980, 260254), (1960, 130127)]