28657800

素因数分解:

$2^3\times 3^4\times 5^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:118

約数の個数: 240

約数和(自身を含む): 104652900

約数和(自身を除く): 75995100

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 27, 29, 30, 36, 40, 45, 50, 54, 58, 60, 61, 72, 75, 81, 87, 90, 100, 108, 116, 120, 122, 135, 145, 150, 162, 174, 180, 183, 200, 216, 225, 232, 244, 261, 270, 290, 300, 305, 324, 348, 360, 366, 405, 435, 450, 488, 522, 540, 549, 580, 600, 610, 648, 675, 696, 725, 732, 783, 810, 870, 900, 915, 1044, 1080, 1098, 1160, 1220, 1305, 1350, 1450, 1464, 1525, 1566, 1620, 1647, 1740, 1769, 1800, 1830, 2025, 2088, 2175, 2196, 2349, 2440, 2610, 2700, 2745, 2900, 3050, 3132, 3240, 3294, 3480, 3538, 3660, 3915, 4050, 4350, 4392, 4575, 4698, 4941, 5220, 5307, 5400, 5490, 5800, 6100, 6264, 6525, 6588, 7076, 7320, 7830, 8100, 8235, 8700, 8845, 9150, 9396, 9882, 10440, 10614, 10980, 11745, 12200, 13050, 13176, 13725, 14152, 15660, 15921, 16200, 16470, 17400, 17690, 18300, 18792, 19575, 19764, 21228, 21960, 23490, 24705, 26100, 26535, 27450, 31320, 31842, 32940, 35380, 36600, 39150, 39528, 41175, 42456, 44225, 46980, 47763, 49410, 52200, 53070, 54900, 58725, 63684, 65880, 70760, 78300, 79605, 82350, 88450, 93960, 95526, 98820, 106140, 109800, 117450, 123525, 127368, 132675, 143289, 156600, 159210, 164700, 176900, 191052, 197640, 212280, 234900, 238815, 247050, 265350, 286578, 318420, 329400, 353800, 382104, 398025, 469800, 477630, 494100, 530700, 573156, 636840, 716445, 796050, 955260, 988200, 1061400, 1146312, 1194075, 1432890, 1592100, 1910520, 2388150, 2865780, 3184200, 3582225, 4776300, 5731560, 7164450, 9552600, 14328900, 28657800]

約数ペア:

[(1, 28657800), (2, 14328900), (3, 9552600), (4, 7164450), (5, 5731560), (6, 4776300), (8, 3582225), (9, 3184200), (10, 2865780), (12, 2388150), (15, 1910520), (18, 1592100), (20, 1432890), (24, 1194075), (25, 1146312), (27, 1061400), (29, 988200), (30, 955260), (36, 796050), (40, 716445), (45, 636840), (50, 573156), (54, 530700), (58, 494100), (60, 477630), (61, 469800), (72, 398025), (75, 382104), (81, 353800), (87, 329400), (90, 318420), (100, 286578), (108, 265350), (116, 247050), (120, 238815), (122, 234900), (135, 212280), (145, 197640), (150, 191052), (162, 176900), (174, 164700), (180, 159210), (183, 156600), (200, 143289), (216, 132675), (225, 127368), (232, 123525), (244, 117450), (261, 109800), (270, 106140), (290, 98820), (300, 95526), (305, 93960), (324, 88450), (348, 82350), (360, 79605), (366, 78300), (405, 70760), (435, 65880), (450, 63684), (488, 58725), (522, 54900), (540, 53070), (549, 52200), (580, 49410), (600, 47763), (610, 46980), (648, 44225), (675, 42456), (696, 41175), (725, 39528), (732, 39150), (783, 36600), (810, 35380), (870, 32940), (900, 31842), (915, 31320), (1044, 27450), (1080, 26535), (1098, 26100), (1160, 24705), (1220, 23490), (1305, 21960), (1350, 21228), (1450, 19764), (1464, 19575), (1525, 18792), (1566, 18300), (1620, 17690), (1647, 17400), (1740, 16470), (1769, 16200), (1800, 15921), (1830, 15660), (2025, 14152), (2088, 13725), (2175, 13176), (2196, 13050), (2349, 12200), (2440, 11745), (2610, 10980), (2700, 10614), (2745, 10440), (2900, 9882), (3050, 9396), (3132, 9150), (3240, 8845), (3294, 8700), (3480, 8235), (3538, 8100), (3660, 7830), (3915, 7320), (4050, 7076), (4350, 6588), (4392, 6525), (4575, 6264), (4698, 6100), (4941, 5800), (5220, 5490), (5307, 5400)]