20105972575

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{9257}}^1$

素因数の和:9484

約数の個数: 48

約数和(自身を含む): 27675791136

約数和(自身を除く): 7569818561

約数列:

[1, 5, 13, 25, 41, 65, 163, 205, 325, 533, 815, 1025, 2119, 2665, 4075, 6683, 9257, 10595, 13325, 33415, 46285, 52975, 86879, 120341, 167075, 231425, 379537, 434395, 601705, 1508891, 1897685, 2171975, 3008525, 4933981, 7544455, 9488425, 19615583, 24669905, 37722275, 61864531, 98077915, 123349525, 309322655, 490389575, 804238903, 1546613275, 4021194515, 20105972575]

約数ペア:

[(1, 20105972575), (5, 4021194515), (13, 1546613275), (25, 804238903), (41, 490389575), (65, 309322655), (163, 123349525), (205, 98077915), (325, 61864531), (533, 37722275), (815, 24669905), (1025, 19615583), (2119, 9488425), (2665, 7544455), (4075, 4933981), (6683, 3008525), (9257, 2171975), (10595, 1897685), (13325, 1508891), (33415, 601705), (46285, 434395), (52975, 379537), (86879, 231425), (120341, 167075)]