400981347

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1459}}^1$

素因数の和:1519

約数の個数: 56

約数和(自身を含む): 670227600

約数和(自身を除く): 269246253

約数列:

[1, 3, 9, 13, 27, 29, 39, 81, 87, 117, 243, 261, 351, 377, 729, 783, 1053, 1131, 1459, 2349, 3159, 3393, 4377, 7047, 9477, 10179, 13131, 18967, 21141, 30537, 39393, 42311, 56901, 91611, 118179, 126933, 170703, 274833, 354537, 380799, 512109, 550043, 1063611, 1142397, 1536327, 1650129, 3427191, 4608981, 4950387, 10281573, 13826943, 14851161, 30844719, 44553483, 133660449, 400981347]

約数ペア:

[(1, 400981347), (3, 133660449), (9, 44553483), (13, 30844719), (27, 14851161), (29, 13826943), (39, 10281573), (81, 4950387), (87, 4608981), (117, 3427191), (243, 1650129), (261, 1536327), (351, 1142397), (377, 1063611), (729, 550043), (783, 512109), (1053, 380799), (1131, 354537), (1459, 274833), (2349, 170703), (3159, 126933), (3393, 118179), (4377, 91611), (7047, 56901), (9477, 42311), (10179, 39393), (13131, 30537), (18967, 21141)]