2154605720

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{277}}^1\times {\mathrm{1193}}^1$

素因数の和:1644

約数の個数: 64

約数和(自身を含む): 4899316320

約数和(自身を除く): 2744710600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 277, 326, 554, 652, 815, 1108, 1193, 1304, 1385, 1630, 2216, 2386, 2770, 3260, 4772, 5540, 5965, 6520, 9544, 11080, 11930, 23860, 45151, 47720, 90302, 180604, 194459, 225755, 330461, 361208, 388918, 451510, 660922, 777836, 903020, 972295, 1321844, 1555672, 1652305, 1806040, 1944590, 2643688, 3304610, 3889180, 6609220, 7778360, 13218440, 53865143, 107730286, 215460572, 269325715, 430921144, 538651430, 1077302860, 2154605720]

約数ペア:

[(1, 2154605720), (2, 1077302860), (4, 538651430), (5, 430921144), (8, 269325715), (10, 215460572), (20, 107730286), (40, 53865143), (163, 13218440), (277, 7778360), (326, 6609220), (554, 3889180), (652, 3304610), (815, 2643688), (1108, 1944590), (1193, 1806040), (1304, 1652305), (1385, 1555672), (1630, 1321844), (2216, 972295), (2386, 903020), (2770, 777836), (3260, 660922), (4772, 451510), (5540, 388918), (5965, 361208), (6520, 330461), (9544, 225755), (11080, 194459), (11930, 180604), (23860, 90302), (45151, 47720)]