21308160

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:234

約数の個数: 144

約数和(自身を含む): 70640640

約数和(自身を除く): 49332480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 179, 186, 192, 240, 248, 256, 310, 320, 358, 372, 384, 465, 480, 496, 537, 620, 640, 716, 744, 768, 895, 930, 960, 992, 1074, 1240, 1280, 1432, 1488, 1790, 1860, 1920, 1984, 2148, 2480, 2685, 2864, 2976, 3580, 3720, 3840, 3968, 4296, 4960, 5370, 5549, 5728, 5952, 7160, 7440, 7936, 8592, 9920, 10740, 11098, 11456, 11904, 14320, 14880, 16647, 17184, 19840, 21480, 22196, 22912, 23808, 27745, 28640, 29760, 33294, 34368, 39680, 42960, 44392, 45824, 55490, 57280, 59520, 66588, 68736, 83235, 85920, 88784, 110980, 114560, 119040, 133176, 137472, 166470, 171840, 177568, 221960, 229120, 266352, 332940, 343680, 355136, 443920, 532704, 665880, 687360, 710272, 887840, 1065408, 1331760, 1420544, 1775680, 2130816, 2663520, 3551360, 4261632, 5327040, 7102720, 10654080, 21308160]

約数ペア:

[(1, 21308160), (2, 10654080), (3, 7102720), (4, 5327040), (5, 4261632), (6, 3551360), (8, 2663520), (10, 2130816), (12, 1775680), (15, 1420544), (16, 1331760), (20, 1065408), (24, 887840), (30, 710272), (31, 687360), (32, 665880), (40, 532704), (48, 443920), (60, 355136), (62, 343680), (64, 332940), (80, 266352), (93, 229120), (96, 221960), (120, 177568), (124, 171840), (128, 166470), (155, 137472), (160, 133176), (179, 119040), (186, 114560), (192, 110980), (240, 88784), (248, 85920), (256, 83235), (310, 68736), (320, 66588), (358, 59520), (372, 57280), (384, 55490), (465, 45824), (480, 44392), (496, 42960), (537, 39680), (620, 34368), (640, 33294), (716, 29760), (744, 28640), (768, 27745), (895, 23808), (930, 22912), (960, 22196), (992, 21480), (1074, 19840), (1240, 17184), (1280, 16647), (1432, 14880), (1488, 14320), (1790, 11904), (1860, 11456), (1920, 11098), (1984, 10740), (2148, 9920), (2480, 8592), (2685, 7936), (2864, 7440), (2976, 7160), (3580, 5952), (3720, 5728), (3840, 5549), (3968, 5370), (4296, 4960)]