18340740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:242

約数の個数: 144

約数和(自身を含む): 62112960

約数和(自身を除く): 43772220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 59, 60, 66, 90, 99, 110, 118, 132, 157, 165, 177, 180, 198, 220, 236, 295, 314, 330, 354, 396, 471, 495, 531, 590, 628, 649, 660, 708, 785, 885, 942, 990, 1062, 1180, 1298, 1413, 1570, 1727, 1770, 1884, 1947, 1980, 2124, 2355, 2596, 2655, 2826, 3140, 3245, 3454, 3540, 3894, 4710, 5181, 5310, 5652, 5841, 6490, 6908, 7065, 7788, 8635, 9263, 9420, 9735, 10362, 10620, 11682, 12980, 14130, 15543, 17270, 18526, 19470, 20724, 23364, 25905, 27789, 28260, 29205, 31086, 34540, 37052, 38940, 46315, 51810, 55578, 58410, 62172, 77715, 83367, 92630, 101893, 103620, 111156, 116820, 138945, 155430, 166734, 185260, 203786, 277890, 305679, 310860, 333468, 407572, 416835, 509465, 555780, 611358, 833670, 917037, 1018930, 1222716, 1528395, 1667340, 1834074, 2037860, 3056790, 3668148, 4585185, 6113580, 9170370, 18340740]

約数ペア:

[(1, 18340740), (2, 9170370), (3, 6113580), (4, 4585185), (5, 3668148), (6, 3056790), (9, 2037860), (10, 1834074), (11, 1667340), (12, 1528395), (15, 1222716), (18, 1018930), (20, 917037), (22, 833670), (30, 611358), (33, 555780), (36, 509465), (44, 416835), (45, 407572), (55, 333468), (59, 310860), (60, 305679), (66, 277890), (90, 203786), (99, 185260), (110, 166734), (118, 155430), (132, 138945), (157, 116820), (165, 111156), (177, 103620), (180, 101893), (198, 92630), (220, 83367), (236, 77715), (295, 62172), (314, 58410), (330, 55578), (354, 51810), (396, 46315), (471, 38940), (495, 37052), (531, 34540), (590, 31086), (628, 29205), (649, 28260), (660, 27789), (708, 25905), (785, 23364), (885, 20724), (942, 19470), (990, 18526), (1062, 17270), (1180, 15543), (1298, 14130), (1413, 12980), (1570, 11682), (1727, 10620), (1770, 10362), (1884, 9735), (1947, 9420), (1980, 9263), (2124, 8635), (2355, 7788), (2596, 7065), (2655, 6908), (2826, 6490), (3140, 5841), (3245, 5652), (3454, 5310), (3540, 5181), (3894, 4710)]