31515840

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1$

素因数の和:407

約数の個数: 168

約数和(自身を含む): 112215168

約数和(自身を除く): 80699328

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, 180, 186, 192, 240, 248, 279, 288, 310, 320, 353, 360, 372, 465, 480, 496, 558, 576, 620, 706, 720, 744, 930, 960, 992, 1059, 1116, 1240, 1395, 1412, 1440, 1488, 1765, 1860, 1984, 2118, 2232, 2480, 2790, 2824, 2880, 2976, 3177, 3530, 3720, 4236, 4464, 4960, 5295, 5580, 5648, 5952, 6354, 7060, 7440, 8472, 8928, 9920, 10590, 10943, 11160, 11296, 12708, 14120, 14880, 15885, 16944, 17856, 21180, 21886, 22320, 22592, 25416, 28240, 29760, 31770, 32829, 33888, 42360, 43772, 44640, 50832, 54715, 56480, 63540, 65658, 67776, 84720, 87544, 89280, 98487, 101664, 109430, 112960, 127080, 131316, 164145, 169440, 175088, 196974, 203328, 218860, 254160, 262632, 328290, 338880, 350176, 393948, 437720, 492435, 508320, 525264, 656580, 700352, 787896, 875440, 984870, 1016640, 1050528, 1313160, 1575792, 1750880, 1969740, 2101056, 2626320, 3151584, 3501760, 3939480, 5252640, 6303168, 7878960, 10505280, 15757920, 31515840]

約数ペア:

[(1, 31515840), (2, 15757920), (3, 10505280), (4, 7878960), (5, 6303168), (6, 5252640), (8, 3939480), (9, 3501760), (10, 3151584), (12, 2626320), (15, 2101056), (16, 1969740), (18, 1750880), (20, 1575792), (24, 1313160), (30, 1050528), (31, 1016640), (32, 984870), (36, 875440), (40, 787896), (45, 700352), (48, 656580), (60, 525264), (62, 508320), (64, 492435), (72, 437720), (80, 393948), (90, 350176), (93, 338880), (96, 328290), (120, 262632), (124, 254160), (144, 218860), (155, 203328), (160, 196974), (180, 175088), (186, 169440), (192, 164145), (240, 131316), (248, 127080), (279, 112960), (288, 109430), (310, 101664), (320, 98487), (353, 89280), (360, 87544), (372, 84720), (465, 67776), (480, 65658), (496, 63540), (558, 56480), (576, 54715), (620, 50832), (706, 44640), (720, 43772), (744, 42360), (930, 33888), (960, 32829), (992, 31770), (1059, 29760), (1116, 28240), (1240, 25416), (1395, 22592), (1412, 22320), (1440, 21886), (1488, 21180), (1765, 17856), (1860, 16944), (1984, 15885), (2118, 14880), (2232, 14120), (2480, 12708), (2790, 11296), (2824, 11160), (2880, 10943), (2976, 10590), (3177, 9920), (3530, 8928), (3720, 8472), (4236, 7440), (4464, 7060), (4960, 6354), (5295, 5952), (5580, 5648)]