90289990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1$

素因数の和:613

約数の個数: 64

約数和(自身を含む): 193840128

約数和(自身を除く): 103550138

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 70, 71, 74, 142, 185, 259, 355, 370, 491, 497, 518, 710, 982, 994, 1295, 2455, 2485, 2590, 2627, 3437, 4910, 4970, 5254, 6874, 13135, 17185, 18167, 18389, 26270, 34370, 34861, 36334, 36778, 69722, 90835, 91945, 127169, 174305, 181670, 183890, 244027, 254338, 348610, 488054, 635845, 1220135, 1271690, 1289857, 2440270, 2579714, 6449285, 9028999, 12898570, 18057998, 45144995, 90289990]

約数ペア:

[(1, 90289990), (2, 45144995), (5, 18057998), (7, 12898570), (10, 9028999), (14, 6449285), (35, 2579714), (37, 2440270), (70, 1289857), (71, 1271690), (74, 1220135), (142, 635845), (185, 488054), (259, 348610), (355, 254338), (370, 244027), (491, 183890), (497, 181670), (518, 174305), (710, 127169), (982, 91945), (994, 90835), (1295, 69722), (2455, 36778), (2485, 36334), (2590, 34861), (2627, 34370), (3437, 26270), (4910, 18389), (4970, 18167), (5254, 17185), (6874, 13135)]