208032280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{1531}}^1$

素因数の和:1664

約数の個数: 64

約数和(自身を含む): 485337600

約数和(自身を除く): 277305320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 79, 86, 158, 172, 215, 316, 344, 395, 430, 632, 790, 860, 1531, 1580, 1720, 3062, 3160, 3397, 6124, 6794, 7655, 12248, 13588, 15310, 16985, 27176, 30620, 33970, 61240, 65833, 67940, 120949, 131666, 135880, 241898, 263332, 329165, 483796, 526664, 604745, 658330, 967592, 1209490, 1316660, 2418980, 2633320, 4837960, 5200807, 10401614, 20803228, 26004035, 41606456, 52008070, 104016140, 208032280]

約数ペア:

[(1, 208032280), (2, 104016140), (4, 52008070), (5, 41606456), (8, 26004035), (10, 20803228), (20, 10401614), (40, 5200807), (43, 4837960), (79, 2633320), (86, 2418980), (158, 1316660), (172, 1209490), (215, 967592), (316, 658330), (344, 604745), (395, 526664), (430, 483796), (632, 329165), (790, 263332), (860, 241898), (1531, 135880), (1580, 131666), (1720, 120949), (3062, 67940), (3160, 65833), (3397, 61240), (6124, 33970), (6794, 30620), (7655, 27176), (12248, 16985), (13588, 15310)]