28721168

素因数分解:

$2^4\times 7^1\times {\mathrm{101}}^1\times {\mathrm{2539}}^1$

素因数の和:2655

約数の個数: 40

約数和(自身を含む): 64251840

約数和(自身を除く): 35530672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 101, 112, 202, 404, 707, 808, 1414, 1616, 2539, 2828, 5078, 5656, 10156, 11312, 17773, 20312, 35546, 40624, 71092, 142184, 256439, 284368, 512878, 1025756, 1795073, 2051512, 3590146, 4103024, 7180292, 14360584, 28721168]

約数ペア:

[(1, 28721168), (2, 14360584), (4, 7180292), (7, 4103024), (8, 3590146), (14, 2051512), (16, 1795073), (28, 1025756), (56, 512878), (101, 284368), (112, 256439), (202, 142184), (404, 71092), (707, 40624), (808, 35546), (1414, 20312), (1616, 17773), (2539, 11312), (2828, 10156), (5078, 5656)]