31393415

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:239

約数の個数: 32

約数和(自身を含む): 41472000

約数和(自身を除く): 10078585

約数列:

[1, 5, 19, 47, 79, 89, 95, 235, 395, 445, 893, 1501, 1691, 3713, 4183, 4465, 7031, 7505, 8455, 18565, 20915, 35155, 70547, 79477, 133589, 330457, 352735, 397385, 667945, 1652285, 6278683, 31393415]

約数ペア:

[(1, 31393415), (5, 6278683), (19, 1652285), (47, 667945), (79, 397385), (89, 352735), (95, 330457), (235, 133589), (395, 79477), (445, 70547), (893, 35155), (1501, 20915), (1691, 18565), (3713, 8455), (4183, 7505), (4465, 7031)]