15997075

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{647}}^1$

素因数の和:723

約数の個数: 24

約数和(自身を含む): 21212928

約数和(自身を除く): 5215853

約数列:

[1, 5, 23, 25, 43, 115, 215, 575, 647, 989, 1075, 3235, 4945, 14881, 16175, 24725, 27821, 74405, 139105, 372025, 639883, 695525, 3199415, 15997075]

約数ペア:

[(1, 15997075), (5, 3199415), (23, 695525), (25, 639883), (43, 372025), (115, 139105), (215, 74405), (575, 27821), (647, 24725), (989, 16175), (1075, 14881), (3235, 4945)]