81667040

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:185

約数の個数: 192

約数和(自身を含む): 243855360

約数和(自身を除く): 162188320

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 71, 79, 80, 91, 104, 112, 130, 140, 142, 158, 160, 182, 208, 224, 260, 280, 284, 316, 355, 364, 395, 416, 455, 497, 520, 553, 560, 568, 632, 710, 728, 790, 910, 923, 994, 1027, 1040, 1106, 1120, 1136, 1264, 1420, 1456, 1580, 1820, 1846, 1988, 2054, 2080, 2212, 2272, 2485, 2528, 2765, 2840, 2912, 3160, 3640, 3692, 3976, 4108, 4424, 4615, 4970, 5135, 5530, 5609, 5680, 6320, 6461, 7189, 7280, 7384, 7952, 8216, 8848, 9230, 9940, 10270, 11060, 11218, 11360, 12640, 12922, 14378, 14560, 14768, 15904, 16432, 17696, 18460, 19880, 20540, 22120, 22436, 25844, 28045, 28756, 29536, 32305, 32864, 35945, 36920, 39263, 39760, 41080, 44240, 44872, 51688, 56090, 57512, 64610, 71890, 72917, 73840, 78526, 79520, 82160, 88480, 89744, 103376, 112180, 115024, 129220, 143780, 145834, 147680, 157052, 164320, 179488, 196315, 206752, 224360, 230048, 258440, 287560, 291668, 314104, 364585, 392630, 448720, 510419, 516880, 575120, 583336, 628208, 729170, 785260, 897440, 1020838, 1033760, 1150240, 1166672, 1256416, 1458340, 1570520, 2041676, 2333344, 2552095, 2916680, 3141040, 4083352, 5104190, 5833360, 6282080, 8166704, 10208380, 11666720, 16333408, 20416760, 40833520, 81667040]

約数ペア:

[(1, 81667040), (2, 40833520), (4, 20416760), (5, 16333408), (7, 11666720), (8, 10208380), (10, 8166704), (13, 6282080), (14, 5833360), (16, 5104190), (20, 4083352), (26, 3141040), (28, 2916680), (32, 2552095), (35, 2333344), (40, 2041676), (52, 1570520), (56, 1458340), (65, 1256416), (70, 1166672), (71, 1150240), (79, 1033760), (80, 1020838), (91, 897440), (104, 785260), (112, 729170), (130, 628208), (140, 583336), (142, 575120), (158, 516880), (160, 510419), (182, 448720), (208, 392630), (224, 364585), (260, 314104), (280, 291668), (284, 287560), (316, 258440), (355, 230048), (364, 224360), (395, 206752), (416, 196315), (455, 179488), (497, 164320), (520, 157052), (553, 147680), (560, 145834), (568, 143780), (632, 129220), (710, 115024), (728, 112180), (790, 103376), (910, 89744), (923, 88480), (994, 82160), (1027, 79520), (1040, 78526), (1106, 73840), (1120, 72917), (1136, 71890), (1264, 64610), (1420, 57512), (1456, 56090), (1580, 51688), (1820, 44872), (1846, 44240), (1988, 41080), (2054, 39760), (2080, 39263), (2212, 36920), (2272, 35945), (2485, 32864), (2528, 32305), (2765, 29536), (2840, 28756), (2912, 28045), (3160, 25844), (3640, 22436), (3692, 22120), (3976, 20540), (4108, 19880), (4424, 18460), (4615, 17696), (4970, 16432), (5135, 15904), (5530, 14768), (5609, 14560), (5680, 14378), (6320, 12922), (6461, 12640), (7189, 11360), (7280, 11218), (7384, 11060), (7952, 10270), (8216, 9940), (8848, 9230)]