28880120

素因数分解:

$2^3\times 5^1\times {\mathrm{739}}^1\times {\mathrm{977}}^1$

素因数の和:1727

約数の個数: 32

約数和(自身を含む): 65134800

約数和(自身を除く): 36254680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 739, 977, 1478, 1954, 2956, 3695, 3908, 4885, 5912, 7390, 7816, 9770, 14780, 19540, 29560, 39080, 722003, 1444006, 2888012, 3610015, 5776024, 7220030, 14440060, 28880120]

約数ペア:

[(1, 28880120), (2, 14440060), (4, 7220030), (5, 5776024), (8, 3610015), (10, 2888012), (20, 1444006), (40, 722003), (739, 39080), (977, 29560), (1478, 19540), (1954, 14780), (2956, 9770), (3695, 7816), (3908, 7390), (4885, 5912)]