19157560

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1171}}^1$

素因数の和:1591

約数の個数: 32

約数和(自身を含む): 43246800

約数和(自身を除く): 24089240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1171, 1636, 2045, 2342, 3272, 4090, 4684, 5855, 8180, 9368, 11710, 16360, 23420, 46840, 478939, 957878, 1915756, 2394695, 3831512, 4789390, 9578780, 19157560]

約数ペア:

[(1, 19157560), (2, 9578780), (4, 4789390), (5, 3831512), (8, 2394695), (10, 1915756), (20, 957878), (40, 478939), (409, 46840), (818, 23420), (1171, 16360), (1636, 11710), (2045, 9368), (2342, 8180), (3272, 5855), (4090, 4684)]