20180772872

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{1259}}^1\times {\mathrm{154127}}^1$

素因数の和:155405

約数の個数: 32

約数和(自身を含む): 40782268800

約数和(自身を除く): 20601495928

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 1259, 2518, 5036, 10072, 16367, 32734, 65468, 130936, 154127, 308254, 616508, 1233016, 2003651, 4007302, 8014604, 16029208, 194045893, 388091786, 776183572, 1552367144, 2522596609, 5045193218, 10090386436, 20180772872]

約数ペア:

[(1, 20180772872), (2, 10090386436), (4, 5045193218), (8, 2522596609), (13, 1552367144), (26, 776183572), (52, 388091786), (104, 194045893), (1259, 16029208), (2518, 8014604), (5036, 4007302), (10072, 2003651), (16367, 1233016), (32734, 616508), (65468, 308254), (130936, 154127)]