51005505

素因数分解:

$3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 83369088

約数和(自身を除く): 32363583

約数列:

[1, 3, 5, 15, 101, 131, 257, 303, 393, 505, 655, 771, 1285, 1515, 1965, 3855, 13231, 25957, 33667, 39693, 66155, 77871, 101001, 129785, 168335, 198465, 389355, 505005, 3400367, 10201101, 17001835, 51005505]

約数ペア:

[(1, 51005505), (3, 17001835), (5, 10201101), (15, 3400367), (101, 505005), (131, 389355), (257, 198465), (303, 168335), (393, 129785), (505, 101001), (655, 77871), (771, 66155), (1285, 39693), (1515, 33667), (1965, 25957), (3855, 13231)]