21129600

素因数分解:

$2^7\times 3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:129

約数の個数: 192

約数和(自身を含む): 72852480

約数和(自身を除く): 51722880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 31, 32, 40, 48, 50, 60, 62, 64, 71, 75, 80, 93, 96, 100, 120, 124, 128, 142, 150, 155, 160, 186, 192, 200, 213, 240, 248, 284, 300, 310, 320, 355, 372, 384, 400, 426, 465, 480, 496, 568, 600, 620, 640, 710, 744, 775, 800, 852, 930, 960, 992, 1065, 1136, 1200, 1240, 1420, 1488, 1550, 1600, 1704, 1775, 1860, 1920, 1984, 2130, 2201, 2272, 2325, 2400, 2480, 2840, 2976, 3100, 3200, 3408, 3550, 3720, 3968, 4260, 4402, 4544, 4650, 4800, 4960, 5325, 5680, 5952, 6200, 6603, 6816, 7100, 7440, 8520, 8804, 9088, 9300, 9600, 9920, 10650, 11005, 11360, 11904, 12400, 13206, 13632, 14200, 14880, 17040, 17608, 18600, 19840, 21300, 22010, 22720, 24800, 26412, 27264, 28400, 29760, 33015, 34080, 35216, 37200, 42600, 44020, 45440, 49600, 52824, 55025, 56800, 59520, 66030, 68160, 70432, 74400, 85200, 88040, 99200, 105648, 110050, 113600, 132060, 136320, 140864, 148800, 165075, 170400, 176080, 211296, 220100, 227200, 264120, 281728, 297600, 330150, 340800, 352160, 422592, 440200, 528240, 660300, 681600, 704320, 845184, 880400, 1056480, 1320600, 1408640, 1760800, 2112960, 2641200, 3521600, 4225920, 5282400, 7043200, 10564800, 21129600]

約数ペア:

[(1, 21129600), (2, 10564800), (3, 7043200), (4, 5282400), (5, 4225920), (6, 3521600), (8, 2641200), (10, 2112960), (12, 1760800), (15, 1408640), (16, 1320600), (20, 1056480), (24, 880400), (25, 845184), (30, 704320), (31, 681600), (32, 660300), (40, 528240), (48, 440200), (50, 422592), (60, 352160), (62, 340800), (64, 330150), (71, 297600), (75, 281728), (80, 264120), (93, 227200), (96, 220100), (100, 211296), (120, 176080), (124, 170400), (128, 165075), (142, 148800), (150, 140864), (155, 136320), (160, 132060), (186, 113600), (192, 110050), (200, 105648), (213, 99200), (240, 88040), (248, 85200), (284, 74400), (300, 70432), (310, 68160), (320, 66030), (355, 59520), (372, 56800), (384, 55025), (400, 52824), (426, 49600), (465, 45440), (480, 44020), (496, 42600), (568, 37200), (600, 35216), (620, 34080), (640, 33015), (710, 29760), (744, 28400), (775, 27264), (800, 26412), (852, 24800), (930, 22720), (960, 22010), (992, 21300), (1065, 19840), (1136, 18600), (1200, 17608), (1240, 17040), (1420, 14880), (1488, 14200), (1550, 13632), (1600, 13206), (1704, 12400), (1775, 11904), (1860, 11360), (1920, 11005), (1984, 10650), (2130, 9920), (2201, 9600), (2272, 9300), (2325, 9088), (2400, 8804), (2480, 8520), (2840, 7440), (2976, 7100), (3100, 6816), (3200, 6603), (3408, 6200), (3550, 5952), (3720, 5680), (3968, 5325), (4260, 4960), (4402, 4800), (4544, 4650)]