268608925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{797}}^1$

素因数の和:898

約数の個数: 48

約数和(自身を含む): 386506512

約数和(自身を除く): 117897587

約数列:

[1, 5, 13, 17, 25, 61, 65, 85, 221, 305, 325, 425, 793, 797, 1037, 1105, 1525, 3965, 3985, 5185, 5525, 10361, 13481, 13549, 19825, 19925, 25925, 48617, 51805, 67405, 67745, 176137, 243085, 259025, 337025, 338725, 632021, 826489, 880685, 1215425, 3160105, 4132445, 4403425, 10744357, 15800525, 20662225, 53721785, 268608925]

約数ペア:

[(1, 268608925), (5, 53721785), (13, 20662225), (17, 15800525), (25, 10744357), (61, 4403425), (65, 4132445), (85, 3160105), (221, 1215425), (305, 880685), (325, 826489), (425, 632021), (793, 338725), (797, 337025), (1037, 259025), (1105, 243085), (1525, 176137), (3965, 67745), (3985, 67405), (5185, 51805), (5525, 48617), (10361, 25925), (13481, 19925), (13549, 19825)]