21204000

素因数分解:

$2^5\times 3^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:81

約数の個数: 288

約数和(自身を含む): 81768960

約数和(自身を除く): 60564960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 25, 30, 31, 32, 36, 38, 40, 45, 48, 50, 57, 60, 62, 72, 75, 76, 80, 90, 93, 95, 96, 100, 114, 120, 124, 125, 144, 150, 152, 155, 160, 171, 180, 186, 190, 200, 225, 228, 240, 248, 250, 279, 285, 288, 300, 304, 310, 342, 360, 372, 375, 380, 400, 450, 456, 465, 475, 480, 496, 500, 558, 570, 589, 600, 608, 620, 684, 720, 744, 750, 760, 775, 800, 855, 900, 912, 930, 950, 992, 1000, 1116, 1125, 1140, 1178, 1200, 1240, 1368, 1395, 1425, 1440, 1488, 1500, 1520, 1550, 1710, 1767, 1800, 1824, 1860, 1900, 2000, 2232, 2250, 2280, 2325, 2356, 2375, 2400, 2480, 2736, 2790, 2850, 2945, 2976, 3000, 3040, 3100, 3420, 3534, 3600, 3720, 3800, 3875, 4000, 4275, 4464, 4500, 4560, 4650, 4712, 4750, 4960, 5301, 5472, 5580, 5700, 5890, 6000, 6200, 6840, 6975, 7068, 7125, 7200, 7440, 7600, 7750, 8550, 8835, 8928, 9000, 9120, 9300, 9424, 9500, 10602, 11160, 11400, 11625, 11780, 12000, 12400, 13680, 13950, 14136, 14250, 14725, 14880, 15200, 15500, 17100, 17670, 18000, 18600, 18848, 19000, 21204, 21375, 22320, 22800, 23250, 23560, 24800, 26505, 27360, 27900, 28272, 28500, 29450, 31000, 34200, 34875, 35340, 36000, 37200, 38000, 42408, 42750, 44175, 44640, 45600, 46500, 47120, 53010, 55800, 56544, 57000, 58900, 62000, 68400, 69750, 70680, 73625, 74400, 76000, 84816, 85500, 88350, 93000, 94240, 106020, 111600, 114000, 117800, 124000, 132525, 136800, 139500, 141360, 147250, 169632, 171000, 176700, 186000, 212040, 220875, 223200, 228000, 235600, 265050, 279000, 282720, 294500, 342000, 353400, 372000, 424080, 441750, 471200, 530100, 558000, 589000, 662625, 684000, 706800, 848160, 883500, 1060200, 1116000, 1178000, 1325250, 1413600, 1767000, 2120400, 2356000, 2650500, 3534000, 4240800, 5301000, 7068000, 10602000, 21204000]

約数ペア:

[(1, 21204000), (2, 10602000), (3, 7068000), (4, 5301000), (5, 4240800), (6, 3534000), (8, 2650500), (9, 2356000), (10, 2120400), (12, 1767000), (15, 1413600), (16, 1325250), (18, 1178000), (19, 1116000), (20, 1060200), (24, 883500), (25, 848160), (30, 706800), (31, 684000), (32, 662625), (36, 589000), (38, 558000), (40, 530100), (45, 471200), (48, 441750), (50, 424080), (57, 372000), (60, 353400), (62, 342000), (72, 294500), (75, 282720), (76, 279000), (80, 265050), (90, 235600), (93, 228000), (95, 223200), (96, 220875), (100, 212040), (114, 186000), (120, 176700), (124, 171000), (125, 169632), (144, 147250), (150, 141360), (152, 139500), (155, 136800), (160, 132525), (171, 124000), (180, 117800), (186, 114000), (190, 111600), (200, 106020), (225, 94240), (228, 93000), (240, 88350), (248, 85500), (250, 84816), (279, 76000), (285, 74400), (288, 73625), (300, 70680), (304, 69750), (310, 68400), (342, 62000), (360, 58900), (372, 57000), (375, 56544), (380, 55800), (400, 53010), (450, 47120), (456, 46500), (465, 45600), (475, 44640), (480, 44175), (496, 42750), (500, 42408), (558, 38000), (570, 37200), (589, 36000), (600, 35340), (608, 34875), (620, 34200), (684, 31000), (720, 29450), (744, 28500), (750, 28272), (760, 27900), (775, 27360), (800, 26505), (855, 24800), (900, 23560), (912, 23250), (930, 22800), (950, 22320), (992, 21375), (1000, 21204), (1116, 19000), (1125, 18848), (1140, 18600), (1178, 18000), (1200, 17670), (1240, 17100), (1368, 15500), (1395, 15200), (1425, 14880), (1440, 14725), (1488, 14250), (1500, 14136), (1520, 13950), (1550, 13680), (1710, 12400), (1767, 12000), (1800, 11780), (1824, 11625), (1860, 11400), (1900, 11160), (2000, 10602), (2232, 9500), (2250, 9424), (2280, 9300), (2325, 9120), (2356, 9000), (2375, 8928), (2400, 8835), (2480, 8550), (2736, 7750), (2790, 7600), (2850, 7440), (2945, 7200), (2976, 7125), (3000, 7068), (3040, 6975), (3100, 6840), (3420, 6200), (3534, 6000), (3600, 5890), (3720, 5700), (3800, 5580), (3875, 5472), (4000, 5301), (4275, 4960), (4464, 4750), (4500, 4712), (4560, 4650)]