131355270

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{631}}^1$

素因数の和:907

約数の個数: 80

約数和(自身を含む): 355135968

約数和(自身を除く): 223780698

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 257, 270, 405, 514, 631, 771, 810, 1262, 1285, 1542, 1893, 2313, 2570, 3155, 3786, 3855, 4626, 5679, 6310, 6939, 7710, 9465, 11358, 11565, 13878, 17037, 18930, 20817, 23130, 28395, 34074, 34695, 41634, 51111, 56790, 69390, 85185, 102222, 104085, 162167, 170370, 208170, 255555, 324334, 486501, 511110, 810835, 973002, 1459503, 1621670, 2432505, 2919006, 4378509, 4865010, 7297515, 8757018, 13135527, 14595030, 21892545, 26271054, 43785090, 65677635, 131355270]

約数ペア:

[(1, 131355270), (2, 65677635), (3, 43785090), (5, 26271054), (6, 21892545), (9, 14595030), (10, 13135527), (15, 8757018), (18, 7297515), (27, 4865010), (30, 4378509), (45, 2919006), (54, 2432505), (81, 1621670), (90, 1459503), (135, 973002), (162, 810835), (257, 511110), (270, 486501), (405, 324334), (514, 255555), (631, 208170), (771, 170370), (810, 162167), (1262, 104085), (1285, 102222), (1542, 85185), (1893, 69390), (2313, 56790), (2570, 51111), (3155, 41634), (3786, 34695), (3855, 34074), (4626, 28395), (5679, 23130), (6310, 20817), (6939, 18930), (7710, 17037), (9465, 13878), (11358, 11565)]