400972

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{701}}^1$

素因数の和:729

約数の個数: 24

約数和(自身を含む): 825552

約数和(自身を除く): 424580

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572, 701, 1402, 2804, 7711, 9113, 15422, 18226, 30844, 36452, 100243, 200486, 400972]

約数ペア:

[(1, 400972), (2, 200486), (4, 100243), (11, 36452), (13, 30844), (22, 18226), (26, 15422), (44, 9113), (52, 7711), (143, 2804), (286, 1402), (572, 701)]