81512200

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:180

約数の個数: 192

約数和(自身を含む): 242841600

約数和(自身を除く): 161329400

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 25, 28, 35, 40, 44, 50, 55, 56, 67, 70, 77, 79, 88, 100, 110, 134, 140, 154, 158, 175, 200, 220, 268, 275, 280, 308, 316, 335, 350, 385, 395, 440, 469, 536, 550, 553, 616, 632, 670, 700, 737, 770, 790, 869, 938, 1100, 1106, 1340, 1400, 1474, 1540, 1580, 1675, 1738, 1876, 1925, 1975, 2200, 2212, 2345, 2680, 2765, 2948, 3080, 3160, 3350, 3476, 3685, 3752, 3850, 3950, 4345, 4424, 4690, 5159, 5293, 5530, 5896, 6083, 6700, 6952, 7370, 7700, 7900, 8690, 9380, 10318, 10586, 11060, 11725, 12166, 13400, 13825, 14740, 15400, 15800, 17380, 18425, 18760, 20636, 21172, 21725, 22120, 23450, 24332, 25795, 26465, 27650, 29480, 30415, 34760, 36850, 37051, 41272, 42344, 43450, 46900, 48664, 51590, 52930, 55300, 58223, 60830, 73700, 74102, 86900, 93800, 103180, 105860, 110600, 116446, 121660, 128975, 132325, 147400, 148204, 152075, 173800, 185255, 206360, 211720, 232892, 243320, 257950, 264650, 291115, 296408, 304150, 370510, 407561, 465784, 515900, 529300, 582230, 608300, 741020, 815122, 926275, 1031800, 1058600, 1164460, 1216600, 1455575, 1482040, 1630244, 1852550, 2037805, 2328920, 2911150, 3260488, 3705100, 4075610, 5822300, 7410200, 8151220, 10189025, 11644600, 16302440, 20378050, 40756100, 81512200]

約数ペア:

[(1, 81512200), (2, 40756100), (4, 20378050), (5, 16302440), (7, 11644600), (8, 10189025), (10, 8151220), (11, 7410200), (14, 5822300), (20, 4075610), (22, 3705100), (25, 3260488), (28, 2911150), (35, 2328920), (40, 2037805), (44, 1852550), (50, 1630244), (55, 1482040), (56, 1455575), (67, 1216600), (70, 1164460), (77, 1058600), (79, 1031800), (88, 926275), (100, 815122), (110, 741020), (134, 608300), (140, 582230), (154, 529300), (158, 515900), (175, 465784), (200, 407561), (220, 370510), (268, 304150), (275, 296408), (280, 291115), (308, 264650), (316, 257950), (335, 243320), (350, 232892), (385, 211720), (395, 206360), (440, 185255), (469, 173800), (536, 152075), (550, 148204), (553, 147400), (616, 132325), (632, 128975), (670, 121660), (700, 116446), (737, 110600), (770, 105860), (790, 103180), (869, 93800), (938, 86900), (1100, 74102), (1106, 73700), (1340, 60830), (1400, 58223), (1474, 55300), (1540, 52930), (1580, 51590), (1675, 48664), (1738, 46900), (1876, 43450), (1925, 42344), (1975, 41272), (2200, 37051), (2212, 36850), (2345, 34760), (2680, 30415), (2765, 29480), (2948, 27650), (3080, 26465), (3160, 25795), (3350, 24332), (3476, 23450), (3685, 22120), (3752, 21725), (3850, 21172), (3950, 20636), (4345, 18760), (4424, 18425), (4690, 17380), (5159, 15800), (5293, 15400), (5530, 14740), (5896, 13825), (6083, 13400), (6700, 12166), (6952, 11725), (7370, 11060), (7700, 10586), (7900, 10318), (8690, 9380)]