18540900

素因数分解:

$2^2\times 3^5\times 5^2\times 7^1\times {\mathrm{109}}^1$

素因数の和:145

約数の個数: 216

約数和(自身を含む): 69509440

約数和(自身を除く): 50968540

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 27, 28, 30, 35, 36, 42, 45, 50, 54, 60, 63, 70, 75, 81, 84, 90, 100, 105, 108, 109, 126, 135, 140, 150, 162, 175, 180, 189, 210, 218, 225, 243, 252, 270, 300, 315, 324, 327, 350, 378, 405, 420, 436, 450, 486, 525, 540, 545, 567, 630, 654, 675, 700, 756, 763, 810, 900, 945, 972, 981, 1050, 1090, 1134, 1215, 1260, 1308, 1350, 1526, 1575, 1620, 1635, 1701, 1890, 1962, 2025, 2100, 2180, 2268, 2289, 2430, 2700, 2725, 2835, 2943, 3052, 3150, 3270, 3402, 3780, 3815, 3924, 4050, 4578, 4725, 4860, 4905, 5450, 5670, 5886, 6075, 6300, 6540, 6804, 6867, 7630, 8100, 8175, 8505, 8829, 9156, 9450, 9810, 10900, 11340, 11445, 11772, 12150, 13734, 14175, 14715, 15260, 16350, 17010, 17658, 18900, 19075, 19620, 20601, 22890, 24300, 24525, 26487, 27468, 28350, 29430, 32700, 34020, 34335, 35316, 38150, 41202, 42525, 44145, 45780, 49050, 52974, 56700, 57225, 58860, 61803, 68670, 73575, 76300, 82404, 85050, 88290, 98100, 103005, 105948, 114450, 123606, 132435, 137340, 147150, 170100, 171675, 176580, 185409, 206010, 220725, 228900, 247212, 264870, 294300, 309015, 343350, 370818, 412020, 441450, 515025, 529740, 618030, 662175, 686700, 741636, 882900, 927045, 1030050, 1236060, 1324350, 1545075, 1854090, 2060100, 2648700, 3090150, 3708180, 4635225, 6180300, 9270450, 18540900]

約数ペア:

[(1, 18540900), (2, 9270450), (3, 6180300), (4, 4635225), (5, 3708180), (6, 3090150), (7, 2648700), (9, 2060100), (10, 1854090), (12, 1545075), (14, 1324350), (15, 1236060), (18, 1030050), (20, 927045), (21, 882900), (25, 741636), (27, 686700), (28, 662175), (30, 618030), (35, 529740), (36, 515025), (42, 441450), (45, 412020), (50, 370818), (54, 343350), (60, 309015), (63, 294300), (70, 264870), (75, 247212), (81, 228900), (84, 220725), (90, 206010), (100, 185409), (105, 176580), (108, 171675), (109, 170100), (126, 147150), (135, 137340), (140, 132435), (150, 123606), (162, 114450), (175, 105948), (180, 103005), (189, 98100), (210, 88290), (218, 85050), (225, 82404), (243, 76300), (252, 73575), (270, 68670), (300, 61803), (315, 58860), (324, 57225), (327, 56700), (350, 52974), (378, 49050), (405, 45780), (420, 44145), (436, 42525), (450, 41202), (486, 38150), (525, 35316), (540, 34335), (545, 34020), (567, 32700), (630, 29430), (654, 28350), (675, 27468), (700, 26487), (756, 24525), (763, 24300), (810, 22890), (900, 20601), (945, 19620), (972, 19075), (981, 18900), (1050, 17658), (1090, 17010), (1134, 16350), (1215, 15260), (1260, 14715), (1308, 14175), (1350, 13734), (1526, 12150), (1575, 11772), (1620, 11445), (1635, 11340), (1701, 10900), (1890, 9810), (1962, 9450), (2025, 9156), (2100, 8829), (2180, 8505), (2268, 8175), (2289, 8100), (2430, 7630), (2700, 6867), (2725, 6804), (2835, 6540), (2943, 6300), (3052, 6075), (3150, 5886), (3270, 5670), (3402, 5450), (3780, 4905), (3815, 4860), (3924, 4725), (4050, 4578)]