1020160880

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{81223}}^1$

素因数の和:81393

約数の個数: 40

約数和(自身を含む): 2387010912

約数和(自身を除く): 1366850032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2512, 3140, 6280, 12560, 81223, 162446, 324892, 406115, 649784, 812230, 1299568, 1624460, 3248920, 6497840, 12752011, 25504022, 51008044, 63760055, 102016088, 127520110, 204032176, 255040220, 510080440, 1020160880]

約数ペア:

[(1, 1020160880), (2, 510080440), (4, 255040220), (5, 204032176), (8, 127520110), (10, 102016088), (16, 63760055), (20, 51008044), (40, 25504022), (80, 12752011), (157, 6497840), (314, 3248920), (628, 1624460), (785, 1299568), (1256, 812230), (1570, 649784), (2512, 406115), (3140, 324892), (6280, 162446), (12560, 81223)]