18940670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 40974336

約数和(自身を除く): 22033666

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 70, 71, 74, 103, 142, 185, 206, 259, 355, 370, 497, 515, 518, 710, 721, 994, 1030, 1295, 1442, 2485, 2590, 2627, 3605, 3811, 4970, 5254, 7210, 7313, 7622, 13135, 14626, 18389, 19055, 26270, 26677, 36565, 36778, 38110, 51191, 53354, 73130, 91945, 102382, 133385, 183890, 255955, 266770, 270581, 511910, 541162, 1352905, 1894067, 2705810, 3788134, 9470335, 18940670]

約数ペア:

[(1, 18940670), (2, 9470335), (5, 3788134), (7, 2705810), (10, 1894067), (14, 1352905), (35, 541162), (37, 511910), (70, 270581), (71, 266770), (74, 255955), (103, 183890), (142, 133385), (185, 102382), (206, 91945), (259, 73130), (355, 53354), (370, 51191), (497, 38110), (515, 36778), (518, 36565), (710, 26677), (721, 26270), (994, 19055), (1030, 18389), (1295, 14626), (1442, 13135), (2485, 7622), (2590, 7313), (2627, 7210), (3605, 5254), (3811, 4970)]