28446940

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{3547}}^1$

素因数の和:3957

約数の個数: 24

約数和(自身を含む): 59904432

約数和(自身を除く): 31457492

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 3547, 4010, 7094, 8020, 14188, 17735, 35470, 70940, 1422347, 2844694, 5689388, 7111735, 14223470, 28446940]

約数ペア:

[(1, 28446940), (2, 14223470), (4, 7111735), (5, 5689388), (10, 2844694), (20, 1422347), (401, 70940), (802, 35470), (1604, 17735), (2005, 14188), (3547, 8020), (4010, 7094)]