21512400

素因数分解:

$2^4\times 3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:238

約数の個数: 240

約数和(自身を含む): 85244544

約数和(自身を除く): 63732144

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 25, 26, 28, 30, 35, 39, 40, 42, 48, 50, 52, 56, 60, 65, 70, 75, 78, 80, 84, 91, 100, 104, 105, 112, 120, 130, 140, 150, 156, 168, 175, 182, 195, 197, 200, 208, 210, 240, 260, 273, 280, 300, 312, 325, 336, 350, 364, 390, 394, 400, 420, 455, 520, 525, 546, 560, 591, 600, 624, 650, 700, 728, 780, 788, 840, 910, 975, 985, 1040, 1050, 1092, 1182, 1200, 1300, 1365, 1379, 1400, 1456, 1560, 1576, 1680, 1820, 1950, 1970, 2100, 2184, 2275, 2364, 2561, 2600, 2730, 2758, 2800, 2955, 3120, 3152, 3640, 3900, 3940, 4137, 4200, 4368, 4550, 4728, 4925, 5122, 5200, 5460, 5516, 5910, 6825, 6895, 7280, 7683, 7800, 7880, 8274, 8400, 9100, 9456, 9850, 10244, 10920, 11032, 11820, 12805, 13650, 13790, 14775, 15366, 15600, 15760, 16548, 17927, 18200, 19700, 20488, 20685, 21840, 22064, 23640, 25610, 27300, 27580, 29550, 30732, 33096, 34475, 35854, 36400, 38415, 39400, 40976, 41370, 47280, 51220, 53781, 54600, 55160, 59100, 61464, 64025, 66192, 68950, 71708, 76830, 78800, 82740, 89635, 102440, 103425, 107562, 109200, 110320, 118200, 122928, 128050, 137900, 143416, 153660, 165480, 179270, 192075, 204880, 206850, 215124, 236400, 256100, 268905, 275800, 286832, 307320, 330960, 358540, 384150, 413700, 430248, 448175, 512200, 537810, 551600, 614640, 717080, 768300, 827400, 860496, 896350, 1024400, 1075620, 1344525, 1434160, 1536600, 1654800, 1792700, 2151240, 2689050, 3073200, 3585400, 4302480, 5378100, 7170800, 10756200, 21512400]

約数ペア:

[(1, 21512400), (2, 10756200), (3, 7170800), (4, 5378100), (5, 4302480), (6, 3585400), (7, 3073200), (8, 2689050), (10, 2151240), (12, 1792700), (13, 1654800), (14, 1536600), (15, 1434160), (16, 1344525), (20, 1075620), (21, 1024400), (24, 896350), (25, 860496), (26, 827400), (28, 768300), (30, 717080), (35, 614640), (39, 551600), (40, 537810), (42, 512200), (48, 448175), (50, 430248), (52, 413700), (56, 384150), (60, 358540), (65, 330960), (70, 307320), (75, 286832), (78, 275800), (80, 268905), (84, 256100), (91, 236400), (100, 215124), (104, 206850), (105, 204880), (112, 192075), (120, 179270), (130, 165480), (140, 153660), (150, 143416), (156, 137900), (168, 128050), (175, 122928), (182, 118200), (195, 110320), (197, 109200), (200, 107562), (208, 103425), (210, 102440), (240, 89635), (260, 82740), (273, 78800), (280, 76830), (300, 71708), (312, 68950), (325, 66192), (336, 64025), (350, 61464), (364, 59100), (390, 55160), (394, 54600), (400, 53781), (420, 51220), (455, 47280), (520, 41370), (525, 40976), (546, 39400), (560, 38415), (591, 36400), (600, 35854), (624, 34475), (650, 33096), (700, 30732), (728, 29550), (780, 27580), (788, 27300), (840, 25610), (910, 23640), (975, 22064), (985, 21840), (1040, 20685), (1050, 20488), (1092, 19700), (1182, 18200), (1200, 17927), (1300, 16548), (1365, 15760), (1379, 15600), (1400, 15366), (1456, 14775), (1560, 13790), (1576, 13650), (1680, 12805), (1820, 11820), (1950, 11032), (1970, 10920), (2100, 10244), (2184, 9850), (2275, 9456), (2364, 9100), (2561, 8400), (2600, 8274), (2730, 7880), (2758, 7800), (2800, 7683), (2955, 7280), (3120, 6895), (3152, 6825), (3640, 5910), (3900, 5516), (3940, 5460), (4137, 5200), (4200, 5122), (4368, 4925), (4550, 4728)]