31385420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{431}}^1$

素因数の和:782

約数の個数: 48

約数和(自身を含む): 72285696

約数和(自身を除く): 40900276

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 331, 431, 662, 862, 1324, 1655, 1724, 2155, 3310, 3641, 4310, 4741, 6620, 7282, 8620, 9482, 14564, 18205, 18964, 23705, 36410, 47410, 72820, 94820, 142661, 285322, 570644, 713305, 1426610, 1569271, 2853220, 3138542, 6277084, 7846355, 15692710, 31385420]

約数ペア:

[(1, 31385420), (2, 15692710), (4, 7846355), (5, 6277084), (10, 3138542), (11, 2853220), (20, 1569271), (22, 1426610), (44, 713305), (55, 570644), (110, 285322), (220, 142661), (331, 94820), (431, 72820), (662, 47410), (862, 36410), (1324, 23705), (1655, 18964), (1724, 18205), (2155, 14564), (3310, 9482), (3641, 8620), (4310, 7282), (4741, 6620)]