72615100

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:343

約数の個数: 72

約数和(自身を含む): 164052000

約数和(自身を除く): 91436900

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 89, 100, 164, 178, 199, 205, 356, 398, 410, 445, 796, 820, 890, 995, 1025, 1780, 1990, 2050, 2225, 3649, 3980, 4100, 4450, 4975, 7298, 8159, 8900, 9950, 14596, 16318, 17711, 18245, 19900, 32636, 35422, 36490, 40795, 70844, 72980, 81590, 88555, 91225, 163180, 177110, 182450, 203975, 354220, 364900, 407950, 442775, 726151, 815900, 885550, 1452302, 1771100, 2904604, 3630755, 7261510, 14523020, 18153775, 36307550, 72615100]

約数ペア:

[(1, 72615100), (2, 36307550), (4, 18153775), (5, 14523020), (10, 7261510), (20, 3630755), (25, 2904604), (41, 1771100), (50, 1452302), (82, 885550), (89, 815900), (100, 726151), (164, 442775), (178, 407950), (199, 364900), (205, 354220), (356, 203975), (398, 182450), (410, 177110), (445, 163180), (796, 91225), (820, 88555), (890, 81590), (995, 72980), (1025, 70844), (1780, 40795), (1990, 36490), (2050, 35422), (2225, 32636), (3649, 19900), (3980, 18245), (4100, 17711), (4450, 16318), (4975, 14596), (7298, 9950), (8159, 8900)]