18867840

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:370

約数の個数: 128

約数和(自身を含む): 62277120

約数和(自身を除く): 43409280

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, 186, 192, 240, 248, 310, 317, 320, 372, 384, 465, 480, 496, 620, 634, 640, 744, 930, 951, 960, 992, 1240, 1268, 1488, 1585, 1860, 1902, 1920, 1984, 2480, 2536, 2976, 3170, 3720, 3804, 3968, 4755, 4960, 5072, 5952, 6340, 7440, 7608, 9510, 9827, 9920, 10144, 11904, 12680, 14880, 15216, 19020, 19654, 19840, 20288, 25360, 29481, 29760, 30432, 38040, 39308, 40576, 49135, 50720, 58962, 59520, 60864, 76080, 78616, 98270, 101440, 117924, 121728, 147405, 152160, 157232, 196540, 202880, 235848, 294810, 304320, 314464, 393080, 471696, 589620, 608640, 628928, 786160, 943392, 1179240, 1257856, 1572320, 1886784, 2358480, 3144640, 3773568, 4716960, 6289280, 9433920, 18867840]

約数ペア:

[(1, 18867840), (2, 9433920), (3, 6289280), (4, 4716960), (5, 3773568), (6, 3144640), (8, 2358480), (10, 1886784), (12, 1572320), (15, 1257856), (16, 1179240), (20, 943392), (24, 786160), (30, 628928), (31, 608640), (32, 589620), (40, 471696), (48, 393080), (60, 314464), (62, 304320), (64, 294810), (80, 235848), (93, 202880), (96, 196540), (120, 157232), (124, 152160), (128, 147405), (155, 121728), (160, 117924), (186, 101440), (192, 98270), (240, 78616), (248, 76080), (310, 60864), (317, 59520), (320, 58962), (372, 50720), (384, 49135), (465, 40576), (480, 39308), (496, 38040), (620, 30432), (634, 29760), (640, 29481), (744, 25360), (930, 20288), (951, 19840), (960, 19654), (992, 19020), (1240, 15216), (1268, 14880), (1488, 12680), (1585, 11904), (1860, 10144), (1902, 9920), (1920, 9827), (1984, 9510), (2480, 7608), (2536, 7440), (2976, 6340), (3170, 5952), (3720, 5072), (3804, 4960), (3968, 4755)]