61315880

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{7703}}^1$

素因数の和:7913

約数の個数: 32

約数和(自身を含む): 138672000

約数和(自身を除く): 77356120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7703, 7960, 15406, 30812, 38515, 61624, 77030, 154060, 308120, 1532897, 3065794, 6131588, 7664485, 12263176, 15328970, 30657940, 61315880]

約数ペア:

[(1, 61315880), (2, 30657940), (4, 15328970), (5, 12263176), (8, 7664485), (10, 6131588), (20, 3065794), (40, 1532897), (199, 308120), (398, 154060), (796, 77030), (995, 61624), (1592, 38515), (1990, 30812), (3980, 15406), (7703, 7960)]