28684720

素因数分解:

$2^4\times 5^1\times {\mathrm{367}}^1\times {\mathrm{977}}^1$

素因数の和:1357

約数の個数: 40

約数和(自身を含む): 66942144

約数和(自身を除く): 38257424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 367, 734, 977, 1468, 1835, 1954, 2936, 3670, 3908, 4885, 5872, 7340, 7816, 9770, 14680, 15632, 19540, 29360, 39080, 78160, 358559, 717118, 1434236, 1792795, 2868472, 3585590, 5736944, 7171180, 14342360, 28684720]

約数ペア:

[(1, 28684720), (2, 14342360), (4, 7171180), (5, 5736944), (8, 3585590), (10, 2868472), (16, 1792795), (20, 1434236), (40, 717118), (80, 358559), (367, 78160), (734, 39080), (977, 29360), (1468, 19540), (1835, 15632), (1954, 14680), (2936, 9770), (3670, 7816), (3908, 7340), (4885, 5872)]