28789890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{2467}}^1$

素因数の和:2866

約数の個数: 32

約数和(自身を含む): 69301440

約数和(自身を除く): 40511550

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 389, 778, 1167, 1945, 2334, 2467, 3890, 4934, 5835, 7401, 11670, 12335, 14802, 24670, 37005, 74010, 959663, 1919326, 2878989, 4798315, 5757978, 9596630, 14394945, 28789890]

約数ペア:

[(1, 28789890), (2, 14394945), (3, 9596630), (5, 5757978), (6, 4798315), (10, 2878989), (15, 1919326), (30, 959663), (389, 74010), (778, 37005), (1167, 24670), (1945, 14802), (2334, 12335), (2467, 11670), (3890, 7401), (4934, 5835)]