388300520

素因数分解:

$2^3\times 5^1\times {\mathrm{877}}^1\times {\mathrm{11069}}^1$

素因数の和:11957

約数の個数: 32

約数和(自身を含む): 874751400

約数和(自身を除く): 486450880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 877, 1754, 3508, 4385, 7016, 8770, 11069, 17540, 22138, 35080, 44276, 55345, 88552, 110690, 221380, 442760, 9707513, 19415026, 38830052, 48537565, 77660104, 97075130, 194150260, 388300520]

約数ペア:

[(1, 388300520), (2, 194150260), (4, 97075130), (5, 77660104), (8, 48537565), (10, 38830052), (20, 19415026), (40, 9707513), (877, 442760), (1754, 221380), (3508, 110690), (4385, 88552), (7016, 55345), (8770, 44276), (11069, 35080), (17540, 22138)]