217234620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{7687}}^1$

素因数の和:7859

約数の個数: 72

約数和(自身を含む): 663228384

約数和(自身を除く): 445993764

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 157, 180, 314, 471, 628, 785, 942, 1413, 1570, 1884, 2355, 2826, 3140, 4710, 5652, 7065, 7687, 9420, 14130, 15374, 23061, 28260, 30748, 38435, 46122, 69183, 76870, 92244, 115305, 138366, 153740, 230610, 276732, 345915, 461220, 691830, 1206859, 1383660, 2413718, 3620577, 4827436, 6034295, 7241154, 10861731, 12068590, 14482308, 18102885, 21723462, 24137180, 36205770, 43446924, 54308655, 72411540, 108617310, 217234620]

約数ペア:

[(1, 217234620), (2, 108617310), (3, 72411540), (4, 54308655), (5, 43446924), (6, 36205770), (9, 24137180), (10, 21723462), (12, 18102885), (15, 14482308), (18, 12068590), (20, 10861731), (30, 7241154), (36, 6034295), (45, 4827436), (60, 3620577), (90, 2413718), (157, 1383660), (180, 1206859), (314, 691830), (471, 461220), (628, 345915), (785, 276732), (942, 230610), (1413, 153740), (1570, 138366), (1884, 115305), (2355, 92244), (2826, 76870), (3140, 69183), (4710, 46122), (5652, 38435), (7065, 30748), (7687, 28260), (9420, 23061), (14130, 15374)]