15981120

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1$

素因数の和:233

約数の個数: 168

約数和(自身を含む): 57058560

約数和(自身を除く): 41077440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 64, 72, 80, 90, 93, 96, 120, 124, 144, 155, 160, 179, 180, 186, 192, 240, 248, 279, 288, 310, 320, 358, 360, 372, 465, 480, 496, 537, 558, 576, 620, 716, 720, 744, 895, 930, 960, 992, 1074, 1116, 1240, 1395, 1432, 1440, 1488, 1611, 1790, 1860, 1984, 2148, 2232, 2480, 2685, 2790, 2864, 2880, 2976, 3222, 3580, 3720, 4296, 4464, 4960, 5370, 5549, 5580, 5728, 5952, 6444, 7160, 7440, 8055, 8592, 8928, 9920, 10740, 11098, 11160, 11456, 12888, 14320, 14880, 16110, 16647, 17184, 17856, 21480, 22196, 22320, 25776, 27745, 28640, 29760, 32220, 33294, 34368, 42960, 44392, 44640, 49941, 51552, 55490, 57280, 64440, 66588, 83235, 85920, 88784, 89280, 99882, 103104, 110980, 128880, 133176, 166470, 171840, 177568, 199764, 221960, 249705, 257760, 266352, 332940, 355136, 399528, 443920, 499410, 515520, 532704, 665880, 799056, 887840, 998820, 1065408, 1331760, 1598112, 1775680, 1997640, 2663520, 3196224, 3995280, 5327040, 7990560, 15981120]

約数ペア:

[(1, 15981120), (2, 7990560), (3, 5327040), (4, 3995280), (5, 3196224), (6, 2663520), (8, 1997640), (9, 1775680), (10, 1598112), (12, 1331760), (15, 1065408), (16, 998820), (18, 887840), (20, 799056), (24, 665880), (30, 532704), (31, 515520), (32, 499410), (36, 443920), (40, 399528), (45, 355136), (48, 332940), (60, 266352), (62, 257760), (64, 249705), (72, 221960), (80, 199764), (90, 177568), (93, 171840), (96, 166470), (120, 133176), (124, 128880), (144, 110980), (155, 103104), (160, 99882), (179, 89280), (180, 88784), (186, 85920), (192, 83235), (240, 66588), (248, 64440), (279, 57280), (288, 55490), (310, 51552), (320, 49941), (358, 44640), (360, 44392), (372, 42960), (465, 34368), (480, 33294), (496, 32220), (537, 29760), (558, 28640), (576, 27745), (620, 25776), (716, 22320), (720, 22196), (744, 21480), (895, 17856), (930, 17184), (960, 16647), (992, 16110), (1074, 14880), (1116, 14320), (1240, 12888), (1395, 11456), (1432, 11160), (1440, 11098), (1488, 10740), (1611, 9920), (1790, 8928), (1860, 8592), (1984, 8055), (2148, 7440), (2232, 7160), (2480, 6444), (2685, 5952), (2790, 5728), (2864, 5580), (2880, 5549), (2976, 5370), (3222, 4960), (3580, 4464), (3720, 4296)]