21768600

素因数分解:

$2^3\times 3^1\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:170

約数の個数: 192

約数和(自身を含む): 79280640

約数和(自身を除く): 57512040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 50, 56, 60, 70, 71, 73, 75, 84, 100, 105, 120, 140, 142, 146, 150, 168, 175, 200, 210, 213, 219, 280, 284, 292, 300, 350, 355, 365, 420, 426, 438, 497, 511, 525, 568, 584, 600, 700, 710, 730, 840, 852, 876, 994, 1022, 1050, 1065, 1095, 1400, 1420, 1460, 1491, 1533, 1704, 1752, 1775, 1825, 1988, 2044, 2100, 2130, 2190, 2485, 2555, 2840, 2920, 2982, 3066, 3550, 3650, 3976, 4088, 4200, 4260, 4380, 4970, 5110, 5183, 5325, 5475, 5964, 6132, 7100, 7300, 7455, 7665, 8520, 8760, 9940, 10220, 10366, 10650, 10950, 11928, 12264, 12425, 12775, 14200, 14600, 14910, 15330, 15549, 19880, 20440, 20732, 21300, 21900, 24850, 25550, 25915, 29820, 30660, 31098, 36281, 37275, 38325, 41464, 42600, 43800, 49700, 51100, 51830, 59640, 61320, 62196, 72562, 74550, 76650, 77745, 99400, 102200, 103660, 108843, 124392, 129575, 145124, 149100, 153300, 155490, 181405, 207320, 217686, 259150, 290248, 298200, 306600, 310980, 362810, 388725, 435372, 518300, 544215, 621960, 725620, 777450, 870744, 907025, 1036600, 1088430, 1451240, 1554900, 1814050, 2176860, 2721075, 3109800, 3628100, 4353720, 5442150, 7256200, 10884300, 21768600]

約数ペア:

[(1, 21768600), (2, 10884300), (3, 7256200), (4, 5442150), (5, 4353720), (6, 3628100), (7, 3109800), (8, 2721075), (10, 2176860), (12, 1814050), (14, 1554900), (15, 1451240), (20, 1088430), (21, 1036600), (24, 907025), (25, 870744), (28, 777450), (30, 725620), (35, 621960), (40, 544215), (42, 518300), (50, 435372), (56, 388725), (60, 362810), (70, 310980), (71, 306600), (73, 298200), (75, 290248), (84, 259150), (100, 217686), (105, 207320), (120, 181405), (140, 155490), (142, 153300), (146, 149100), (150, 145124), (168, 129575), (175, 124392), (200, 108843), (210, 103660), (213, 102200), (219, 99400), (280, 77745), (284, 76650), (292, 74550), (300, 72562), (350, 62196), (355, 61320), (365, 59640), (420, 51830), (426, 51100), (438, 49700), (497, 43800), (511, 42600), (525, 41464), (568, 38325), (584, 37275), (600, 36281), (700, 31098), (710, 30660), (730, 29820), (840, 25915), (852, 25550), (876, 24850), (994, 21900), (1022, 21300), (1050, 20732), (1065, 20440), (1095, 19880), (1400, 15549), (1420, 15330), (1460, 14910), (1491, 14600), (1533, 14200), (1704, 12775), (1752, 12425), (1775, 12264), (1825, 11928), (1988, 10950), (2044, 10650), (2100, 10366), (2130, 10220), (2190, 9940), (2485, 8760), (2555, 8520), (2840, 7665), (2920, 7455), (2982, 7300), (3066, 7100), (3550, 6132), (3650, 5964), (3976, 5475), (4088, 5325), (4200, 5183), (4260, 5110), (4380, 4970)]