85011020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{293}}^1$

素因数の和:554

約数の個数: 48

約数和(自身を含む): 182256480

約数和(自身を除く): 97245460

約数列:

[1, 2, 4, 5, 10, 20, 89, 163, 178, 293, 326, 356, 445, 586, 652, 815, 890, 1172, 1465, 1630, 1780, 2930, 3260, 5860, 14507, 26077, 29014, 47759, 52154, 58028, 72535, 95518, 104308, 130385, 145070, 191036, 238795, 260770, 290140, 477590, 521540, 955180, 4250551, 8501102, 17002204, 21252755, 42505510, 85011020]

約数ペア:

[(1, 85011020), (2, 42505510), (4, 21252755), (5, 17002204), (10, 8501102), (20, 4250551), (89, 955180), (163, 521540), (178, 477590), (293, 290140), (326, 260770), (356, 238795), (445, 191036), (586, 145070), (652, 130385), (815, 104308), (890, 95518), (1172, 72535), (1465, 58028), (1630, 52154), (1780, 47759), (2930, 29014), (3260, 26077), (5860, 14507)]