13387940

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 29108352

約数和(自身を除く): 15720412

約数列:

[1, 2, 4, 5, 10, 20, 67, 97, 103, 134, 194, 206, 268, 335, 388, 412, 485, 515, 670, 970, 1030, 1340, 1940, 2060, 6499, 6901, 9991, 12998, 13802, 19982, 25996, 27604, 32495, 34505, 39964, 49955, 64990, 69010, 99910, 129980, 138020, 199820, 669397, 1338794, 2677588, 3346985, 6693970, 13387940]

約数ペア:

[(1, 13387940), (2, 6693970), (4, 3346985), (5, 2677588), (10, 1338794), (20, 669397), (67, 199820), (97, 138020), (103, 129980), (134, 99910), (194, 69010), (206, 64990), (268, 49955), (335, 39964), (388, 34505), (412, 32495), (485, 27604), (515, 25996), (670, 19982), (970, 13802), (1030, 12998), (1340, 9991), (1940, 6901), (2060, 6499)]