18491760

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{1223}}^1$

素因数の和:1252

約数の個数: 160

約数和(自身を含む): 72852480

約数和(自身を除く): 54360720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1223, 1260, 1512, 1680, 1890, 2160, 2446, 2520, 3024, 3669, 3780, 4892, 5040, 6115, 7338, 7560, 8561, 9784, 11007, 12230, 14676, 15120, 17122, 18345, 19568, 22014, 24460, 25683, 29352, 33021, 34244, 36690, 42805, 44028, 48920, 51366, 55035, 58704, 66042, 68488, 73380, 77049, 85610, 88056, 97840, 102732, 110070, 128415, 132084, 136976, 146760, 154098, 165105, 171220, 176112, 205464, 220140, 231147, 256830, 264168, 293520, 308196, 330210, 342440, 385245, 410928, 440280, 462294, 513660, 528336, 616392, 660420, 684880, 770490, 880560, 924588, 1027320, 1155735, 1232784, 1320840, 1540980, 1849176, 2054640, 2311470, 2641680, 3081960, 3698352, 4622940, 6163920, 9245880, 18491760]

約数ペア:

[(1, 18491760), (2, 9245880), (3, 6163920), (4, 4622940), (5, 3698352), (6, 3081960), (7, 2641680), (8, 2311470), (9, 2054640), (10, 1849176), (12, 1540980), (14, 1320840), (15, 1232784), (16, 1155735), (18, 1027320), (20, 924588), (21, 880560), (24, 770490), (27, 684880), (28, 660420), (30, 616392), (35, 528336), (36, 513660), (40, 462294), (42, 440280), (45, 410928), (48, 385245), (54, 342440), (56, 330210), (60, 308196), (63, 293520), (70, 264168), (72, 256830), (80, 231147), (84, 220140), (90, 205464), (105, 176112), (108, 171220), (112, 165105), (120, 154098), (126, 146760), (135, 136976), (140, 132084), (144, 128415), (168, 110070), (180, 102732), (189, 97840), (210, 88056), (216, 85610), (240, 77049), (252, 73380), (270, 68488), (280, 66042), (315, 58704), (336, 55035), (360, 51366), (378, 48920), (420, 44028), (432, 42805), (504, 36690), (540, 34244), (560, 33021), (630, 29352), (720, 25683), (756, 24460), (840, 22014), (945, 19568), (1008, 18345), (1080, 17122), (1223, 15120), (1260, 14676), (1512, 12230), (1680, 11007), (1890, 9784), (2160, 8561), (2446, 7560), (2520, 7338), (3024, 6115), (3669, 5040), (3780, 4892)]