15720042

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{419}}^1$

素因数の和:487

約数の個数: 48

約数和(自身を含む): 35048160

約数和(自身を除く): 19328118

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 74, 78, 111, 169, 222, 338, 419, 481, 507, 838, 962, 1014, 1257, 1443, 2514, 2886, 5447, 6253, 10894, 12506, 15503, 16341, 18759, 31006, 32682, 37518, 46509, 70811, 93018, 141622, 201539, 212433, 403078, 424866, 604617, 1209234, 2620007, 5240014, 7860021, 15720042]

約数ペア:

[(1, 15720042), (2, 7860021), (3, 5240014), (6, 2620007), (13, 1209234), (26, 604617), (37, 424866), (39, 403078), (74, 212433), (78, 201539), (111, 141622), (169, 93018), (222, 70811), (338, 46509), (419, 37518), (481, 32682), (507, 31006), (838, 18759), (962, 16341), (1014, 15503), (1257, 12506), (1443, 10894), (2514, 6253), (2886, 5447)]