5420140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{347}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 12628224

約数和(自身を除く): 7208084

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 347, 355, 694, 710, 781, 1388, 1420, 1562, 1735, 3124, 3470, 3817, 3905, 6940, 7634, 7810, 15268, 15620, 19085, 24637, 38170, 49274, 76340, 98548, 123185, 246370, 271007, 492740, 542014, 1084028, 1355035, 2710070, 5420140]

約数ペア:

[(1, 5420140), (2, 2710070), (4, 1355035), (5, 1084028), (10, 542014), (11, 492740), (20, 271007), (22, 246370), (44, 123185), (55, 98548), (71, 76340), (110, 49274), (142, 38170), (220, 24637), (284, 19085), (347, 15620), (355, 15268), (694, 7810), (710, 7634), (781, 6940), (1388, 3905), (1420, 3817), (1562, 3470), (1735, 3124)]