20727720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:176

約数の個数: 192

約数和(自身を含む): 74954880

約数和(自身を除く): 54227160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 36, 39, 40, 43, 45, 52, 60, 65, 72, 78, 86, 90, 103, 104, 117, 120, 129, 130, 156, 172, 180, 195, 206, 215, 234, 258, 260, 309, 312, 344, 360, 387, 390, 412, 430, 468, 515, 516, 520, 559, 585, 618, 645, 774, 780, 824, 860, 927, 936, 1030, 1032, 1118, 1170, 1236, 1290, 1339, 1545, 1548, 1560, 1677, 1720, 1854, 1935, 2060, 2236, 2340, 2472, 2580, 2678, 2795, 3090, 3096, 3354, 3708, 3870, 4017, 4120, 4429, 4472, 4635, 4680, 5031, 5160, 5356, 5590, 6180, 6695, 6708, 7416, 7740, 8034, 8385, 8858, 9270, 10062, 10712, 11180, 12051, 12360, 13287, 13390, 13416, 15480, 16068, 16770, 17716, 18540, 20085, 20124, 22145, 22360, 24102, 25155, 26574, 26780, 32136, 33540, 35432, 37080, 39861, 40170, 40248, 44290, 48204, 50310, 53148, 53560, 57577, 60255, 66435, 67080, 79722, 80340, 88580, 96408, 100620, 106296, 115154, 120510, 132870, 159444, 160680, 172731, 177160, 199305, 201240, 230308, 241020, 265740, 287885, 318888, 345462, 398610, 460616, 482040, 518193, 531480, 575770, 690924, 797220, 863655, 1036386, 1151540, 1381848, 1594440, 1727310, 2072772, 2303080, 2590965, 3454620, 4145544, 5181930, 6909240, 10363860, 20727720]

約数ペア:

[(1, 20727720), (2, 10363860), (3, 6909240), (4, 5181930), (5, 4145544), (6, 3454620), (8, 2590965), (9, 2303080), (10, 2072772), (12, 1727310), (13, 1594440), (15, 1381848), (18, 1151540), (20, 1036386), (24, 863655), (26, 797220), (30, 690924), (36, 575770), (39, 531480), (40, 518193), (43, 482040), (45, 460616), (52, 398610), (60, 345462), (65, 318888), (72, 287885), (78, 265740), (86, 241020), (90, 230308), (103, 201240), (104, 199305), (117, 177160), (120, 172731), (129, 160680), (130, 159444), (156, 132870), (172, 120510), (180, 115154), (195, 106296), (206, 100620), (215, 96408), (234, 88580), (258, 80340), (260, 79722), (309, 67080), (312, 66435), (344, 60255), (360, 57577), (387, 53560), (390, 53148), (412, 50310), (430, 48204), (468, 44290), (515, 40248), (516, 40170), (520, 39861), (559, 37080), (585, 35432), (618, 33540), (645, 32136), (774, 26780), (780, 26574), (824, 25155), (860, 24102), (927, 22360), (936, 22145), (1030, 20124), (1032, 20085), (1118, 18540), (1170, 17716), (1236, 16770), (1290, 16068), (1339, 15480), (1545, 13416), (1548, 13390), (1560, 13287), (1677, 12360), (1720, 12051), (1854, 11180), (1935, 10712), (2060, 10062), (2236, 9270), (2340, 8858), (2472, 8385), (2580, 8034), (2678, 7740), (2795, 7416), (3090, 6708), (3096, 6695), (3354, 6180), (3708, 5590), (3870, 5356), (4017, 5160), (4120, 5031), (4429, 4680), (4472, 4635)]