19977550

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1237}}^1$

素因数の和:1285

約数の個数: 48

約数和(自身を含む): 41448240

約数和(自身を除く): 21470690

約数列:

[1, 2, 5, 10, 17, 19, 25, 34, 38, 50, 85, 95, 170, 190, 323, 425, 475, 646, 850, 950, 1237, 1615, 2474, 3230, 6185, 8075, 12370, 16150, 21029, 23503, 30925, 42058, 47006, 61850, 105145, 117515, 210290, 235030, 399551, 525725, 587575, 799102, 1051450, 1175150, 1997755, 3995510, 9988775, 19977550]

約数ペア:

[(1, 19977550), (2, 9988775), (5, 3995510), (10, 1997755), (17, 1175150), (19, 1051450), (25, 799102), (34, 587575), (38, 525725), (50, 399551), (85, 235030), (95, 210290), (170, 117515), (190, 105145), (323, 61850), (425, 47006), (475, 42058), (646, 30925), (850, 23503), (950, 21029), (1237, 16150), (1615, 12370), (2474, 8075), (3230, 6185)]