81331680

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:233

約数の個数: 192

約数和(自身を含む): 274337280

約数和(自身を除く): 193005600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 53, 60, 69, 80, 92, 96, 106, 115, 120, 138, 139, 159, 160, 184, 212, 230, 240, 265, 276, 278, 318, 345, 368, 417, 424, 460, 480, 530, 552, 556, 636, 690, 695, 736, 795, 834, 848, 920, 1060, 1104, 1112, 1219, 1272, 1380, 1390, 1590, 1668, 1696, 1840, 2085, 2120, 2208, 2224, 2438, 2544, 2760, 2780, 3180, 3197, 3336, 3657, 3680, 4170, 4240, 4448, 4876, 5088, 5520, 5560, 6095, 6360, 6394, 6672, 7314, 7367, 8340, 8480, 9591, 9752, 11040, 11120, 12190, 12720, 12788, 13344, 14628, 14734, 15985, 16680, 18285, 19182, 19504, 22101, 22240, 24380, 25440, 25576, 29256, 29468, 31970, 33360, 36570, 36835, 38364, 39008, 44202, 47955, 48760, 51152, 58512, 58936, 63940, 66720, 73140, 73670, 76728, 88404, 95910, 97520, 102304, 110505, 117024, 117872, 127880, 146280, 147340, 153456, 169441, 176808, 191820, 195040, 221010, 235744, 255760, 292560, 294680, 306912, 338882, 353616, 383640, 442020, 508323, 511520, 585120, 589360, 677764, 707232, 767280, 847205, 884040, 1016646, 1178720, 1355528, 1534560, 1694410, 1768080, 2033292, 2541615, 2711056, 3388820, 3536160, 4066584, 5083230, 5422112, 6777640, 8133168, 10166460, 13555280, 16266336, 20332920, 27110560, 40665840, 81331680]

約数ペア:

[(1, 81331680), (2, 40665840), (3, 27110560), (4, 20332920), (5, 16266336), (6, 13555280), (8, 10166460), (10, 8133168), (12, 6777640), (15, 5422112), (16, 5083230), (20, 4066584), (23, 3536160), (24, 3388820), (30, 2711056), (32, 2541615), (40, 2033292), (46, 1768080), (48, 1694410), (53, 1534560), (60, 1355528), (69, 1178720), (80, 1016646), (92, 884040), (96, 847205), (106, 767280), (115, 707232), (120, 677764), (138, 589360), (139, 585120), (159, 511520), (160, 508323), (184, 442020), (212, 383640), (230, 353616), (240, 338882), (265, 306912), (276, 294680), (278, 292560), (318, 255760), (345, 235744), (368, 221010), (417, 195040), (424, 191820), (460, 176808), (480, 169441), (530, 153456), (552, 147340), (556, 146280), (636, 127880), (690, 117872), (695, 117024), (736, 110505), (795, 102304), (834, 97520), (848, 95910), (920, 88404), (1060, 76728), (1104, 73670), (1112, 73140), (1219, 66720), (1272, 63940), (1380, 58936), (1390, 58512), (1590, 51152), (1668, 48760), (1696, 47955), (1840, 44202), (2085, 39008), (2120, 38364), (2208, 36835), (2224, 36570), (2438, 33360), (2544, 31970), (2760, 29468), (2780, 29256), (3180, 25576), (3197, 25440), (3336, 24380), (3657, 22240), (3680, 22101), (4170, 19504), (4240, 19182), (4448, 18285), (4876, 16680), (5088, 15985), (5520, 14734), (5560, 14628), (6095, 13344), (6360, 12788), (6394, 12720), (6672, 12190), (7314, 11120), (7367, 11040), (8340, 9752), (8480, 9591)]