31571640

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:115

約数の個数: 256

約数和(自身を含む): 116121600

約数和(自身を除く): 84549960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 27, 30, 31, 36, 40, 41, 45, 46, 54, 60, 62, 69, 72, 82, 90, 92, 93, 108, 115, 120, 123, 124, 135, 138, 155, 164, 180, 184, 186, 205, 207, 216, 230, 246, 248, 270, 276, 279, 310, 328, 345, 360, 369, 372, 410, 414, 460, 465, 492, 540, 552, 558, 615, 620, 621, 690, 713, 738, 744, 820, 828, 837, 920, 930, 943, 984, 1035, 1080, 1107, 1116, 1230, 1240, 1242, 1271, 1380, 1395, 1426, 1476, 1640, 1656, 1674, 1845, 1860, 1886, 2070, 2139, 2214, 2232, 2460, 2484, 2542, 2760, 2790, 2829, 2852, 2952, 3105, 3348, 3565, 3690, 3720, 3772, 3813, 4140, 4185, 4278, 4428, 4715, 4920, 4968, 5084, 5535, 5580, 5658, 5704, 6210, 6355, 6417, 6696, 7130, 7380, 7544, 7626, 8280, 8370, 8487, 8556, 8856, 9430, 10168, 10695, 11070, 11160, 11316, 11439, 12420, 12710, 12834, 14145, 14260, 14760, 15252, 16740, 16974, 17112, 18860, 19065, 19251, 21390, 22140, 22632, 22878, 24840, 25420, 25461, 25668, 28290, 28520, 29233, 30504, 32085, 33480, 33948, 34317, 37720, 38130, 38502, 42435, 42780, 44280, 45756, 50840, 50922, 51336, 56580, 57195, 58466, 64170, 67896, 68634, 76260, 77004, 84870, 85560, 87699, 91512, 96255, 101844, 113160, 114390, 116932, 127305, 128340, 137268, 146165, 152520, 154008, 169740, 171585, 175398, 192510, 203688, 228780, 233864, 254610, 256680, 263097, 274536, 292330, 339480, 343170, 350796, 385020, 438495, 457560, 509220, 526194, 584660, 686340, 701592, 770040, 789291, 876990, 1018440, 1052388, 1169320, 1315485, 1372680, 1578582, 1753980, 2104776, 2630970, 3157164, 3507960, 3946455, 5261940, 6314328, 7892910, 10523880, 15785820, 31571640]

約数ペア:

[(1, 31571640), (2, 15785820), (3, 10523880), (4, 7892910), (5, 6314328), (6, 5261940), (8, 3946455), (9, 3507960), (10, 3157164), (12, 2630970), (15, 2104776), (18, 1753980), (20, 1578582), (23, 1372680), (24, 1315485), (27, 1169320), (30, 1052388), (31, 1018440), (36, 876990), (40, 789291), (41, 770040), (45, 701592), (46, 686340), (54, 584660), (60, 526194), (62, 509220), (69, 457560), (72, 438495), (82, 385020), (90, 350796), (92, 343170), (93, 339480), (108, 292330), (115, 274536), (120, 263097), (123, 256680), (124, 254610), (135, 233864), (138, 228780), (155, 203688), (164, 192510), (180, 175398), (184, 171585), (186, 169740), (205, 154008), (207, 152520), (216, 146165), (230, 137268), (246, 128340), (248, 127305), (270, 116932), (276, 114390), (279, 113160), (310, 101844), (328, 96255), (345, 91512), (360, 87699), (369, 85560), (372, 84870), (410, 77004), (414, 76260), (460, 68634), (465, 67896), (492, 64170), (540, 58466), (552, 57195), (558, 56580), (615, 51336), (620, 50922), (621, 50840), (690, 45756), (713, 44280), (738, 42780), (744, 42435), (820, 38502), (828, 38130), (837, 37720), (920, 34317), (930, 33948), (943, 33480), (984, 32085), (1035, 30504), (1080, 29233), (1107, 28520), (1116, 28290), (1230, 25668), (1240, 25461), (1242, 25420), (1271, 24840), (1380, 22878), (1395, 22632), (1426, 22140), (1476, 21390), (1640, 19251), (1656, 19065), (1674, 18860), (1845, 17112), (1860, 16974), (1886, 16740), (2070, 15252), (2139, 14760), (2214, 14260), (2232, 14145), (2460, 12834), (2484, 12710), (2542, 12420), (2760, 11439), (2790, 11316), (2829, 11160), (2852, 11070), (2952, 10695), (3105, 10168), (3348, 9430), (3565, 8856), (3690, 8556), (3720, 8487), (3772, 8370), (3813, 8280), (4140, 7626), (4185, 7544), (4278, 7380), (4428, 7130), (4715, 6696), (4920, 6417), (4968, 6355), (5084, 6210), (5535, 5704), (5580, 5658)]