72621640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:383

約数の個数: 128

約数和(自身を含む): 204664320

約数和(自身を除く): 132042680

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 71, 91, 104, 130, 140, 142, 182, 260, 280, 281, 284, 355, 364, 455, 497, 520, 562, 568, 710, 728, 910, 923, 994, 1124, 1405, 1420, 1820, 1846, 1967, 1988, 2248, 2485, 2810, 2840, 3640, 3653, 3692, 3934, 3976, 4615, 4970, 5620, 6461, 7306, 7384, 7868, 9230, 9835, 9940, 11240, 12922, 14612, 15736, 18265, 18460, 19670, 19880, 19951, 25571, 25844, 29224, 32305, 36530, 36920, 39340, 39902, 51142, 51688, 64610, 73060, 78680, 79804, 99755, 102284, 127855, 129220, 139657, 146120, 159608, 199510, 204568, 255710, 258440, 259363, 279314, 399020, 511420, 518726, 558628, 698285, 798040, 1022840, 1037452, 1117256, 1296815, 1396570, 1815541, 2074904, 2593630, 2793140, 3631082, 5187260, 5586280, 7262164, 9077705, 10374520, 14524328, 18155410, 36310820, 72621640]

約数ペア:

[(1, 72621640), (2, 36310820), (4, 18155410), (5, 14524328), (7, 10374520), (8, 9077705), (10, 7262164), (13, 5586280), (14, 5187260), (20, 3631082), (26, 2793140), (28, 2593630), (35, 2074904), (40, 1815541), (52, 1396570), (56, 1296815), (65, 1117256), (70, 1037452), (71, 1022840), (91, 798040), (104, 698285), (130, 558628), (140, 518726), (142, 511420), (182, 399020), (260, 279314), (280, 259363), (281, 258440), (284, 255710), (355, 204568), (364, 199510), (455, 159608), (497, 146120), (520, 139657), (562, 129220), (568, 127855), (710, 102284), (728, 99755), (910, 79804), (923, 78680), (994, 73060), (1124, 64610), (1405, 51688), (1420, 51142), (1820, 39902), (1846, 39340), (1967, 36920), (1988, 36530), (2248, 32305), (2485, 29224), (2810, 25844), (2840, 25571), (3640, 19951), (3653, 19880), (3692, 19670), (3934, 18460), (3976, 18265), (4615, 15736), (4970, 14612), (5620, 12922), (6461, 11240), (7306, 9940), (7384, 9835), (7868, 9230)]