257622402

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1\times {\mathrm{239}}^1$

素因数の和:447

約数の個数: 64

約数和(自身を含む): 552407040

約数和(自身を除く): 294784638

約数列:

[1, 2, 3, 6, 23, 46, 69, 73, 107, 138, 146, 214, 219, 239, 321, 438, 478, 642, 717, 1434, 1679, 2461, 3358, 4922, 5037, 5497, 7383, 7811, 10074, 10994, 14766, 15622, 16491, 17447, 23433, 25573, 32982, 34894, 46866, 51146, 52341, 76719, 104682, 153438, 179653, 359306, 401281, 538959, 588179, 802562, 1077918, 1176358, 1203843, 1764537, 1866829, 2407686, 3529074, 3733658, 5600487, 11200974, 42937067, 85874134, 128811201, 257622402]

約数ペア:

[(1, 257622402), (2, 128811201), (3, 85874134), (6, 42937067), (23, 11200974), (46, 5600487), (69, 3733658), (73, 3529074), (107, 2407686), (138, 1866829), (146, 1764537), (214, 1203843), (219, 1176358), (239, 1077918), (321, 802562), (438, 588179), (478, 538959), (642, 401281), (717, 359306), (1434, 179653), (1679, 153438), (2461, 104682), (3358, 76719), (4922, 52341), (5037, 51146), (5497, 46866), (7383, 34894), (7811, 32982), (10074, 25573), (10994, 23433), (14766, 17447), (15622, 16491)]