56802980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1109}}^1$

素因数の和:1328

約数の個数: 48

約数和(自身を含む): 129230640

約数和(自身を除く): 72427660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 197, 260, 394, 788, 985, 1109, 1970, 2218, 2561, 3940, 4436, 5122, 5545, 10244, 11090, 12805, 14417, 22180, 25610, 28834, 51220, 57668, 72085, 144170, 218473, 288340, 436946, 873892, 1092365, 2184730, 2840149, 4369460, 5680298, 11360596, 14200745, 28401490, 56802980]

約数ペア:

[(1, 56802980), (2, 28401490), (4, 14200745), (5, 11360596), (10, 5680298), (13, 4369460), (20, 2840149), (26, 2184730), (52, 1092365), (65, 873892), (130, 436946), (197, 288340), (260, 218473), (394, 144170), (788, 72085), (985, 57668), (1109, 51220), (1970, 28834), (2218, 25610), (2561, 22180), (3940, 14417), (4436, 12805), (5122, 11090), (5545, 10244)]