20118751575

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1213801}}^1$

素因数の和:1213844

約数の個数: 48

約数和(自身を含む): 37928884896

約数和(自身を除く): 17810133321

約数列:

[1, 3, 5, 13, 15, 17, 25, 39, 51, 65, 75, 85, 195, 221, 255, 325, 425, 663, 975, 1105, 1275, 3315, 5525, 16575, 1213801, 3641403, 6069005, 15779413, 18207015, 20634617, 30345025, 47338239, 61903851, 78897065, 91035075, 103173085, 236691195, 268250021, 309519255, 394485325, 515865425, 804750063, 1183455975, 1341250105, 1547596275, 4023750315, 6706250525, 20118751575]

約数ペア:

[(1, 20118751575), (3, 6706250525), (5, 4023750315), (13, 1547596275), (15, 1341250105), (17, 1183455975), (25, 804750063), (39, 515865425), (51, 394485325), (65, 309519255), (75, 268250021), (85, 236691195), (195, 103173085), (221, 91035075), (255, 78897065), (325, 61903851), (425, 47338239), (663, 30345025), (975, 20634617), (1105, 18207015), (1275, 15779413), (3315, 6069005), (5525, 3641403), (16575, 1213801)]