19986233540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{10981447}}^1$

素因数の和:10981476

約数の個数: 48

約数和(自身を含む): 51656731392

約数和(自身を除く): 31670497852

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 10981447, 21962894, 43925788, 54907235, 76870129, 109814470, 142758811, 153740258, 219628940, 285517622, 307480516, 384350645, 571035244, 713794055, 768701290, 999311677, 1427588110, 1537402580, 1998623354, 2855176220, 3997246708, 4996558385, 9993116770, 19986233540]

約数ペア:

[(1, 19986233540), (2, 9993116770), (4, 4996558385), (5, 3997246708), (7, 2855176220), (10, 1998623354), (13, 1537402580), (14, 1427588110), (20, 999311677), (26, 768701290), (28, 713794055), (35, 571035244), (52, 384350645), (65, 307480516), (70, 285517622), (91, 219628940), (130, 153740258), (140, 142758811), (182, 109814470), (260, 76870129), (364, 54907235), (455, 43925788), (910, 21962894), (1820, 10981447)]