38128025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 55246464

約数和(自身を除く): 17118439

約数列:

[1, 5, 13, 17, 25, 65, 67, 85, 103, 221, 325, 335, 425, 515, 871, 1105, 1139, 1339, 1675, 1751, 2575, 4355, 5525, 5695, 6695, 6901, 8755, 14807, 21775, 22763, 28475, 33475, 34505, 43775, 74035, 89713, 113815, 117317, 172525, 370175, 448565, 569075, 586585, 1525121, 2242825, 2932925, 7625605, 38128025]

約数ペア:

[(1, 38128025), (5, 7625605), (13, 2932925), (17, 2242825), (25, 1525121), (65, 586585), (67, 569075), (85, 448565), (103, 370175), (221, 172525), (325, 117317), (335, 113815), (425, 89713), (515, 74035), (871, 43775), (1105, 34505), (1139, 33475), (1339, 28475), (1675, 22763), (1751, 21775), (2575, 14807), (4355, 8755), (5525, 6901), (5695, 6695)]