28286540

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{3527}}^1$

素因数の和:3937

約数の個数: 24

約数和(自身を含む): 59566752

約数和(自身を除く): 31280212

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 3527, 4010, 7054, 8020, 14108, 17635, 35270, 70540, 1414327, 2828654, 5657308, 7071635, 14143270, 28286540]

約数ペア:

[(1, 28286540), (2, 14143270), (4, 7071635), (5, 5657308), (10, 2828654), (20, 1414327), (401, 70540), (802, 35270), (1604, 17635), (2005, 14108), (3527, 8020), (4010, 7054)]