18854920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67339}}^1$

素因数の和:67357

約数の個数: 32

約数和(自身を含む): 48484800

約数和(自身を除く): 29629880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 67339, 134678, 269356, 336695, 471373, 538712, 673390, 942746, 1346780, 1885492, 2356865, 2693560, 3770984, 4713730, 9427460, 18854920]

約数ペア:

[(1, 18854920), (2, 9427460), (4, 4713730), (5, 3770984), (7, 2693560), (8, 2356865), (10, 1885492), (14, 1346780), (20, 942746), (28, 673390), (35, 538712), (40, 471373), (56, 336695), (70, 269356), (140, 134678), (280, 67339)]