231681290

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{25771}}^1$

素因数の和:25838

約数の個数: 32

約数和(自身を含む): 445340160

約数和(自身を除く): 213658870

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 145, 155, 290, 310, 899, 1798, 4495, 8990, 25771, 51542, 128855, 257710, 747359, 798901, 1494718, 1597802, 3736795, 3994505, 7473590, 7989010, 23168129, 46336258, 115840645, 231681290]

約数ペア:

[(1, 231681290), (2, 115840645), (5, 46336258), (10, 23168129), (29, 7989010), (31, 7473590), (58, 3994505), (62, 3736795), (145, 1597802), (155, 1494718), (290, 798901), (310, 747359), (899, 257710), (1798, 128855), (4495, 51542), (8990, 25771)]