38905945

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1$

素因数の和:429

約数の個数: 32

約数和(自身を含む): 53833248

約数和(自身を除く): 14927303

約数列:

[1, 5, 13, 17, 65, 85, 137, 221, 257, 685, 1105, 1285, 1781, 2329, 3341, 4369, 8905, 11645, 16705, 21845, 30277, 35209, 56797, 151385, 176045, 283985, 457717, 598553, 2288585, 2992765, 7781189, 38905945]

約数ペア:

[(1, 38905945), (5, 7781189), (13, 2992765), (17, 2288585), (65, 598553), (85, 457717), (137, 283985), (221, 176045), (257, 151385), (685, 56797), (1105, 35209), (1285, 30277), (1781, 21845), (2329, 16705), (3341, 11645), (4369, 8905)]