15391880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{7853}}^1$

素因数の和:7878

約数の個数: 48

約数和(自身を含む): 40291020

約数和(自身を除く): 24899140

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 7853, 15706, 31412, 39265, 54971, 62824, 78530, 109942, 157060, 219884, 274855, 314120, 384797, 439768, 549710, 769594, 1099420, 1539188, 1923985, 2198840, 3078376, 3847970, 7695940, 15391880]

約数ペア:

[(1, 15391880), (2, 7695940), (4, 3847970), (5, 3078376), (7, 2198840), (8, 1923985), (10, 1539188), (14, 1099420), (20, 769594), (28, 549710), (35, 439768), (40, 384797), (49, 314120), (56, 274855), (70, 219884), (98, 157060), (140, 109942), (196, 78530), (245, 62824), (280, 54971), (392, 39265), (490, 31412), (980, 15706), (1960, 7853)]