15917525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:150

約数の個数: 48

約数和(自身を含む): 23373504

約数和(自身を除く): 7455979

約数列:

[1, 5, 13, 17, 25, 43, 65, 67, 85, 215, 221, 325, 335, 425, 559, 731, 871, 1075, 1105, 1139, 1675, 2795, 2881, 3655, 4355, 5525, 5695, 9503, 13975, 14405, 14807, 18275, 21775, 28475, 37453, 47515, 48977, 72025, 74035, 187265, 237575, 244885, 370175, 636701, 936325, 1224425, 3183505, 15917525]

約数ペア:

[(1, 15917525), (5, 3183505), (13, 1224425), (17, 936325), (25, 636701), (43, 370175), (65, 244885), (67, 237575), (85, 187265), (215, 74035), (221, 72025), (325, 48977), (335, 47515), (425, 37453), (559, 28475), (731, 21775), (871, 18275), (1075, 14807), (1105, 14405), (1139, 13975), (1675, 9503), (2795, 5695), (2881, 5525), (3655, 4355)]