20277720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:150

約数の個数: 192

約数和(自身を含む): 71884800

約数和(自身を除く): 51607080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 23, 24, 30, 31, 36, 40, 45, 46, 60, 62, 69, 72, 79, 90, 92, 93, 115, 120, 124, 138, 155, 158, 180, 184, 186, 207, 230, 237, 248, 276, 279, 310, 316, 345, 360, 372, 395, 414, 460, 465, 474, 552, 558, 620, 632, 690, 711, 713, 744, 790, 828, 920, 930, 948, 1035, 1116, 1185, 1240, 1380, 1395, 1422, 1426, 1580, 1656, 1817, 1860, 1896, 2070, 2139, 2232, 2370, 2449, 2760, 2790, 2844, 2852, 3160, 3555, 3565, 3634, 3720, 4140, 4278, 4740, 4898, 5451, 5580, 5688, 5704, 6417, 7110, 7130, 7268, 7347, 8280, 8556, 9085, 9480, 9796, 10695, 10902, 11160, 12245, 12834, 14220, 14260, 14536, 14694, 16353, 17112, 18170, 19592, 21390, 21804, 22041, 24490, 25668, 27255, 28440, 28520, 29388, 32085, 32706, 36340, 36735, 42780, 43608, 44082, 48980, 51336, 54510, 56327, 58776, 64170, 65412, 72680, 73470, 81765, 85560, 88164, 97960, 109020, 110205, 112654, 128340, 130824, 146940, 163530, 168981, 176328, 218040, 220410, 225308, 256680, 281635, 293880, 327060, 337962, 440820, 450616, 506943, 563270, 654120, 675924, 844905, 881640, 1013886, 1126540, 1351848, 1689810, 2027772, 2253080, 2534715, 3379620, 4055544, 5069430, 6759240, 10138860, 20277720]

約数ペア:

[(1, 20277720), (2, 10138860), (3, 6759240), (4, 5069430), (5, 4055544), (6, 3379620), (8, 2534715), (9, 2253080), (10, 2027772), (12, 1689810), (15, 1351848), (18, 1126540), (20, 1013886), (23, 881640), (24, 844905), (30, 675924), (31, 654120), (36, 563270), (40, 506943), (45, 450616), (46, 440820), (60, 337962), (62, 327060), (69, 293880), (72, 281635), (79, 256680), (90, 225308), (92, 220410), (93, 218040), (115, 176328), (120, 168981), (124, 163530), (138, 146940), (155, 130824), (158, 128340), (180, 112654), (184, 110205), (186, 109020), (207, 97960), (230, 88164), (237, 85560), (248, 81765), (276, 73470), (279, 72680), (310, 65412), (316, 64170), (345, 58776), (360, 56327), (372, 54510), (395, 51336), (414, 48980), (460, 44082), (465, 43608), (474, 42780), (552, 36735), (558, 36340), (620, 32706), (632, 32085), (690, 29388), (711, 28520), (713, 28440), (744, 27255), (790, 25668), (828, 24490), (920, 22041), (930, 21804), (948, 21390), (1035, 19592), (1116, 18170), (1185, 17112), (1240, 16353), (1380, 14694), (1395, 14536), (1422, 14260), (1426, 14220), (1580, 12834), (1656, 12245), (1817, 11160), (1860, 10902), (1896, 10695), (2070, 9796), (2139, 9480), (2232, 9085), (2370, 8556), (2449, 8280), (2760, 7347), (2790, 7268), (2844, 7130), (2852, 7110), (3160, 6417), (3555, 5704), (3565, 5688), (3634, 5580), (3720, 5451), (4140, 4898), (4278, 4740)]