20787029168

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{2857}}^1\times {\mathrm{14669}}^1$

素因数の和:17565

約数の個数: 40

約数和(自身を含む): 41591445120

約数和(自身を除く): 20804415952

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 2857, 5714, 11428, 14669, 22856, 29338, 45712, 58676, 88567, 117352, 177134, 234704, 354268, 454739, 708536, 909478, 1417072, 1818956, 3637912, 7275824, 41909333, 83818666, 167637332, 335274664, 670549328, 1299189323, 2598378646, 5196757292, 10393514584, 20787029168]

約数ペア:

[(1, 20787029168), (2, 10393514584), (4, 5196757292), (8, 2598378646), (16, 1299189323), (31, 670549328), (62, 335274664), (124, 167637332), (248, 83818666), (496, 41909333), (2857, 7275824), (5714, 3637912), (11428, 1818956), (14669, 1417072), (22856, 909478), (29338, 708536), (45712, 454739), (58676, 354268), (88567, 234704), (117352, 177134)]