7991300

素因数分解:

$2^2\times 5^2\times {\mathrm{157}}^1\times {\mathrm{509}}^1$

素因数の和:680

約数の個数: 36

約数和(自身を含む): 17485860

約数和(自身を除く): 9494560

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 157, 314, 509, 628, 785, 1018, 1570, 2036, 2545, 3140, 3925, 5090, 7850, 10180, 12725, 15700, 25450, 50900, 79913, 159826, 319652, 399565, 799130, 1598260, 1997825, 3995650, 7991300]

約数ペア:

[(1, 7991300), (2, 3995650), (4, 1997825), (5, 1598260), (10, 799130), (20, 399565), (25, 319652), (50, 159826), (100, 79913), (157, 50900), (314, 25450), (509, 15700), (628, 12725), (785, 10180), (1018, 7850), (1570, 5090), (2036, 3925), (2545, 3140)]