449720680

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{111317}}^1$

素因数の和:111429

約数の個数: 32

約数和(自身を含む): 1021899240

約数和(自身を除く): 572178560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 111317, 222634, 445268, 556585, 890536, 1113170, 2226340, 4452680, 11243017, 22486034, 44972068, 56215085, 89944136, 112430170, 224860340, 449720680]

約数ペア:

[(1, 449720680), (2, 224860340), (4, 112430170), (5, 89944136), (8, 56215085), (10, 44972068), (20, 22486034), (40, 11243017), (101, 4452680), (202, 2226340), (404, 1113170), (505, 890536), (808, 556585), (1010, 445268), (2020, 222634), (4040, 111317)]