209291260

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^2\times {\mathrm{541}}^1$

素因数の和:631

約数の個数: 72

約数和(自身を含む): 475858656

約数和(自身を除く): 266567396

約数列:

[1, 2, 4, 5, 10, 20, 23, 29, 46, 58, 92, 115, 116, 145, 230, 290, 460, 541, 580, 667, 841, 1082, 1334, 1682, 2164, 2668, 2705, 3335, 3364, 4205, 5410, 6670, 8410, 10820, 12443, 13340, 15689, 16820, 19343, 24886, 31378, 38686, 49772, 62215, 62756, 77372, 78445, 96715, 124430, 156890, 193430, 248860, 313780, 360847, 386860, 454981, 721694, 909962, 1443388, 1804235, 1819924, 2274905, 3608470, 4549810, 7216940, 9099620, 10464563, 20929126, 41858252, 52322815, 104645630, 209291260]

約数ペア:

[(1, 209291260), (2, 104645630), (4, 52322815), (5, 41858252), (10, 20929126), (20, 10464563), (23, 9099620), (29, 7216940), (46, 4549810), (58, 3608470), (92, 2274905), (115, 1819924), (116, 1804235), (145, 1443388), (230, 909962), (290, 721694), (460, 454981), (541, 386860), (580, 360847), (667, 313780), (841, 248860), (1082, 193430), (1334, 156890), (1682, 124430), (2164, 96715), (2668, 78445), (2705, 77372), (3335, 62756), (3364, 62215), (4205, 49772), (5410, 38686), (6670, 31378), (8410, 24886), (10820, 19343), (12443, 16820), (13340, 15689)]