137790640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{132491}}^1$

素因数の和:132517

約数の個数: 40

約数和(自身を含む): 345009168

約数和(自身を除く): 207218528

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 132491, 264982, 529964, 662455, 1059928, 1324910, 1722383, 2119856, 2649820, 3444766, 5299640, 6889532, 8611915, 10599280, 13779064, 17223830, 27558128, 34447660, 68895320, 137790640]

約数ペア:

[(1, 137790640), (2, 68895320), (4, 34447660), (5, 27558128), (8, 17223830), (10, 13779064), (13, 10599280), (16, 8611915), (20, 6889532), (26, 5299640), (40, 3444766), (52, 2649820), (65, 2119856), (80, 1722383), (104, 1324910), (130, 1059928), (208, 662455), (260, 529964), (520, 264982), (1040, 132491)]