28075880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{100271}}^1$

素因数の和:100289

約数の個数: 32

約数和(自身を含む): 72195840

約数和(自身を除く): 44119960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 100271, 200542, 401084, 501355, 701897, 802168, 1002710, 1403794, 2005420, 2807588, 3509485, 4010840, 5615176, 7018970, 14037940, 28075880]

約数ペア:

[(1, 28075880), (2, 14037940), (4, 7018970), (5, 5615176), (7, 4010840), (8, 3509485), (10, 2807588), (14, 2005420), (20, 1403794), (28, 1002710), (35, 802168), (40, 701897), (56, 501355), (70, 401084), (140, 200542), (280, 100271)]