20801025325

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1019}}^1\times {\mathrm{1117}}^1$

素因数の和:2206

約数の個数: 48

約数和(自身を含む): 27998118720

約数和(自身を除く): 7197093395

約数列:

[1, 5, 17, 25, 43, 85, 215, 425, 731, 1019, 1075, 1117, 3655, 5095, 5585, 17323, 18275, 18989, 25475, 27925, 43817, 48031, 86615, 94945, 219085, 240155, 433075, 474725, 744889, 816527, 1095425, 1138223, 1200775, 3724445, 4082635, 5691115, 18622225, 19349791, 20413175, 28455575, 48943589, 96748955, 244717945, 483744775, 832041013, 1223589725, 4160205065, 20801025325]

約数ペア:

[(1, 20801025325), (5, 4160205065), (17, 1223589725), (25, 832041013), (43, 483744775), (85, 244717945), (215, 96748955), (425, 48943589), (731, 28455575), (1019, 20413175), (1075, 19349791), (1117, 18622225), (3655, 5691115), (5095, 4082635), (5585, 3724445), (17323, 1200775), (18275, 1138223), (18989, 1095425), (25475, 816527), (27925, 744889), (43817, 474725), (48031, 433075), (86615, 240155), (94945, 219085)]