81484920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^3$

素因数の和:88

約数の個数: 256

約数和(自身を含む): 312768000

約数和(自身を除く): 231283080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 19, 20, 22, 24, 27, 30, 33, 36, 38, 40, 44, 45, 54, 55, 57, 60, 66, 72, 76, 88, 90, 95, 99, 108, 110, 114, 120, 132, 135, 152, 165, 171, 180, 190, 198, 209, 216, 220, 228, 264, 270, 285, 297, 330, 342, 360, 361, 380, 396, 418, 440, 456, 495, 513, 540, 570, 594, 627, 660, 684, 722, 760, 792, 836, 855, 990, 1026, 1045, 1080, 1083, 1140, 1188, 1254, 1320, 1368, 1444, 1485, 1672, 1710, 1805, 1881, 1980, 2052, 2090, 2166, 2280, 2376, 2508, 2565, 2888, 2970, 3135, 3249, 3420, 3610, 3762, 3960, 3971, 4104, 4180, 4332, 5016, 5130, 5415, 5643, 5940, 6270, 6498, 6840, 6859, 7220, 7524, 7942, 8360, 8664, 9405, 9747, 10260, 10830, 11286, 11880, 11913, 12540, 12996, 13718, 14440, 15048, 15884, 16245, 18810, 19494, 19855, 20520, 20577, 21660, 22572, 23826, 25080, 25992, 27436, 28215, 31768, 32490, 34295, 35739, 37620, 38988, 39710, 41154, 43320, 45144, 47652, 48735, 54872, 56430, 59565, 61731, 64980, 68590, 71478, 75240, 75449, 77976, 79420, 82308, 95304, 97470, 102885, 107217, 112860, 119130, 123462, 129960, 137180, 142956, 150898, 158840, 164616, 178695, 185193, 194940, 205770, 214434, 225720, 226347, 238260, 246924, 274360, 285912, 301796, 308655, 357390, 370386, 377245, 389880, 411540, 428868, 452694, 476520, 493848, 536085, 603592, 617310, 679041, 714780, 740772, 754490, 823080, 857736, 905388, 925965, 1072170, 1131735, 1234620, 1358082, 1429560, 1481544, 1508980, 1810776, 1851930, 2037123, 2144340, 2263470, 2469240, 2716164, 3017960, 3395205, 3703860, 4074246, 4288680, 4526940, 5432328, 6790410, 7407720, 8148492, 9053880, 10185615, 13580820, 16296984, 20371230, 27161640, 40742460, 81484920]

約数ペア:

[(1, 81484920), (2, 40742460), (3, 27161640), (4, 20371230), (5, 16296984), (6, 13580820), (8, 10185615), (9, 9053880), (10, 8148492), (11, 7407720), (12, 6790410), (15, 5432328), (18, 4526940), (19, 4288680), (20, 4074246), (22, 3703860), (24, 3395205), (27, 3017960), (30, 2716164), (33, 2469240), (36, 2263470), (38, 2144340), (40, 2037123), (44, 1851930), (45, 1810776), (54, 1508980), (55, 1481544), (57, 1429560), (60, 1358082), (66, 1234620), (72, 1131735), (76, 1072170), (88, 925965), (90, 905388), (95, 857736), (99, 823080), (108, 754490), (110, 740772), (114, 714780), (120, 679041), (132, 617310), (135, 603592), (152, 536085), (165, 493848), (171, 476520), (180, 452694), (190, 428868), (198, 411540), (209, 389880), (216, 377245), (220, 370386), (228, 357390), (264, 308655), (270, 301796), (285, 285912), (297, 274360), (330, 246924), (342, 238260), (360, 226347), (361, 225720), (380, 214434), (396, 205770), (418, 194940), (440, 185193), (456, 178695), (495, 164616), (513, 158840), (540, 150898), (570, 142956), (594, 137180), (627, 129960), (660, 123462), (684, 119130), (722, 112860), (760, 107217), (792, 102885), (836, 97470), (855, 95304), (990, 82308), (1026, 79420), (1045, 77976), (1080, 75449), (1083, 75240), (1140, 71478), (1188, 68590), (1254, 64980), (1320, 61731), (1368, 59565), (1444, 56430), (1485, 54872), (1672, 48735), (1710, 47652), (1805, 45144), (1881, 43320), (1980, 41154), (2052, 39710), (2090, 38988), (2166, 37620), (2280, 35739), (2376, 34295), (2508, 32490), (2565, 31768), (2888, 28215), (2970, 27436), (3135, 25992), (3249, 25080), (3420, 23826), (3610, 22572), (3762, 21660), (3960, 20577), (3971, 20520), (4104, 19855), (4180, 19494), (4332, 18810), (5016, 16245), (5130, 15884), (5415, 15048), (5643, 14440), (5940, 13718), (6270, 12996), (6498, 12540), (6840, 11913), (6859, 11880), (7220, 11286), (7524, 10830), (7942, 10260), (8360, 9747), (8664, 9405)]