261300240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:582

約数の個数: 240

約数和(自身を含む): 947082240

約数和(自身を除く): 685782000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 31, 36, 40, 45, 46, 48, 60, 62, 69, 72, 80, 90, 92, 93, 115, 120, 124, 138, 144, 155, 180, 184, 186, 207, 230, 240, 248, 276, 279, 310, 345, 360, 368, 372, 414, 460, 465, 496, 509, 552, 558, 620, 690, 713, 720, 744, 828, 920, 930, 1018, 1035, 1104, 1116, 1240, 1380, 1395, 1426, 1488, 1527, 1656, 1840, 1860, 2036, 2070, 2139, 2232, 2480, 2545, 2760, 2790, 2852, 3054, 3312, 3565, 3720, 4072, 4140, 4278, 4464, 4581, 5090, 5520, 5580, 5704, 6108, 6417, 7130, 7440, 7635, 8144, 8280, 8556, 9162, 10180, 10695, 11160, 11408, 11707, 12216, 12834, 14260, 15270, 15779, 16560, 17112, 18324, 20360, 21390, 22320, 22905, 23414, 24432, 25668, 28520, 30540, 31558, 32085, 34224, 35121, 36648, 40720, 42780, 45810, 46828, 47337, 51336, 57040, 58535, 61080, 63116, 64170, 70242, 73296, 78895, 85560, 91620, 93656, 94674, 102672, 105363, 117070, 122160, 126232, 128340, 140484, 142011, 157790, 171120, 175605, 183240, 187312, 189348, 210726, 234140, 236685, 252464, 256680, 280968, 284022, 315580, 351210, 362917, 366480, 378696, 421452, 468280, 473370, 513360, 526815, 561936, 568044, 631160, 702420, 710055, 725834, 757392, 842904, 936560, 946740, 1053630, 1088751, 1136088, 1262320, 1404840, 1420110, 1451668, 1685808, 1814585, 1893480, 2107260, 2177502, 2272176, 2809680, 2840220, 2903336, 3266253, 3629170, 3786960, 4214520, 4355004, 5443755, 5680440, 5806672, 6532506, 7258340, 8429040, 8710008, 10887510, 11360880, 13065012, 14516680, 16331265, 17420016, 21775020, 26130024, 29033360, 32662530, 43550040, 52260048, 65325060, 87100080, 130650120, 261300240]

約数ペア:

[(1, 261300240), (2, 130650120), (3, 87100080), (4, 65325060), (5, 52260048), (6, 43550040), (8, 32662530), (9, 29033360), (10, 26130024), (12, 21775020), (15, 17420016), (16, 16331265), (18, 14516680), (20, 13065012), (23, 11360880), (24, 10887510), (30, 8710008), (31, 8429040), (36, 7258340), (40, 6532506), (45, 5806672), (46, 5680440), (48, 5443755), (60, 4355004), (62, 4214520), (69, 3786960), (72, 3629170), (80, 3266253), (90, 2903336), (92, 2840220), (93, 2809680), (115, 2272176), (120, 2177502), (124, 2107260), (138, 1893480), (144, 1814585), (155, 1685808), (180, 1451668), (184, 1420110), (186, 1404840), (207, 1262320), (230, 1136088), (240, 1088751), (248, 1053630), (276, 946740), (279, 936560), (310, 842904), (345, 757392), (360, 725834), (368, 710055), (372, 702420), (414, 631160), (460, 568044), (465, 561936), (496, 526815), (509, 513360), (552, 473370), (558, 468280), (620, 421452), (690, 378696), (713, 366480), (720, 362917), (744, 351210), (828, 315580), (920, 284022), (930, 280968), (1018, 256680), (1035, 252464), (1104, 236685), (1116, 234140), (1240, 210726), (1380, 189348), (1395, 187312), (1426, 183240), (1488, 175605), (1527, 171120), (1656, 157790), (1840, 142011), (1860, 140484), (2036, 128340), (2070, 126232), (2139, 122160), (2232, 117070), (2480, 105363), (2545, 102672), (2760, 94674), (2790, 93656), (2852, 91620), (3054, 85560), (3312, 78895), (3565, 73296), (3720, 70242), (4072, 64170), (4140, 63116), (4278, 61080), (4464, 58535), (4581, 57040), (5090, 51336), (5520, 47337), (5580, 46828), (5704, 45810), (6108, 42780), (6417, 40720), (7130, 36648), (7440, 35121), (7635, 34224), (8144, 32085), (8280, 31558), (8556, 30540), (9162, 28520), (10180, 25668), (10695, 24432), (11160, 23414), (11408, 22905), (11707, 22320), (12216, 21390), (12834, 20360), (14260, 18324), (15270, 17112), (15779, 16560)]