20007972

素因数分解:

$2^2\times 3^4\times {\mathrm{37}}^1\times {\mathrm{1669}}^1$

素因数の和:1722

約数の個数: 60

約数和(自身を含む): 53750620

約数和(自身を除く): 33742648

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 37, 54, 74, 81, 108, 111, 148, 162, 222, 324, 333, 444, 666, 999, 1332, 1669, 1998, 2997, 3338, 3996, 5007, 5994, 6676, 10014, 11988, 15021, 20028, 30042, 45063, 60084, 61753, 90126, 123506, 135189, 180252, 185259, 247012, 270378, 370518, 540756, 555777, 741036, 1111554, 1667331, 2223108, 3334662, 5001993, 6669324, 10003986, 20007972]

約数ペア:

[(1, 20007972), (2, 10003986), (3, 6669324), (4, 5001993), (6, 3334662), (9, 2223108), (12, 1667331), (18, 1111554), (27, 741036), (36, 555777), (37, 540756), (54, 370518), (74, 270378), (81, 247012), (108, 185259), (111, 180252), (148, 135189), (162, 123506), (222, 90126), (324, 61753), (333, 60084), (444, 45063), (666, 30042), (999, 20028), (1332, 15021), (1669, 11988), (1998, 10014), (2997, 6676), (3338, 5994), (3996, 5007)]