31209776

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{661}}^1$

素因数の和:909

約数の個数: 40

約数和(自身を含む): 65506224

約数和(自身を除く): 34296448

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 227, 454, 661, 908, 1322, 1816, 2644, 2951, 3632, 5288, 5902, 8593, 10576, 11804, 17186, 23608, 34372, 47216, 68744, 137488, 150047, 300094, 600188, 1200376, 1950611, 2400752, 3901222, 7802444, 15604888, 31209776]

約数ペア:

[(1, 31209776), (2, 15604888), (4, 7802444), (8, 3901222), (13, 2400752), (16, 1950611), (26, 1200376), (52, 600188), (104, 300094), (208, 150047), (227, 137488), (454, 68744), (661, 47216), (908, 34372), (1322, 23608), (1816, 17186), (2644, 11804), (2951, 10576), (3632, 8593), (5288, 5902)]