20218986500

素因数分解:

$2^2\times 5^3\times {\mathrm{2741}}^1\times {\mathrm{14753}}^1$

素因数の和:17513

約数の個数: 48

約数和(自身を含む): 44177371056

約数和(自身を除く): 23958384556

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 2741, 5482, 10964, 13705, 14753, 27410, 29506, 54820, 59012, 68525, 73765, 137050, 147530, 274100, 295060, 342625, 368825, 685250, 737650, 1370500, 1475300, 1844125, 3688250, 7376500, 40437973, 80875946, 161751892, 202189865, 404379730, 808759460, 1010949325, 2021898650, 4043797300, 5054746625, 10109493250, 20218986500]

約数ペア:

[(1, 20218986500), (2, 10109493250), (4, 5054746625), (5, 4043797300), (10, 2021898650), (20, 1010949325), (25, 808759460), (50, 404379730), (100, 202189865), (125, 161751892), (250, 80875946), (500, 40437973), (2741, 7376500), (5482, 3688250), (10964, 1844125), (13705, 1475300), (14753, 1370500), (27410, 737650), (29506, 685250), (54820, 368825), (59012, 342625), (68525, 295060), (73765, 274100), (137050, 147530)]