321508760

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{1097}}^1$

素因数の和:1556

約数の個数: 64

約数和(自身を含む): 768424320

約数和(自身を除く): 446915560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 431, 680, 862, 1097, 1724, 2155, 2194, 3448, 4310, 4388, 5485, 7327, 8620, 8776, 10970, 14654, 17240, 18649, 21940, 29308, 36635, 37298, 43880, 58616, 73270, 74596, 93245, 146540, 149192, 186490, 293080, 372980, 472807, 745960, 945614, 1891228, 2364035, 3782456, 4728070, 8037719, 9456140, 16075438, 18912280, 32150876, 40188595, 64301752, 80377190, 160754380, 321508760]

約数ペア:

[(1, 321508760), (2, 160754380), (4, 80377190), (5, 64301752), (8, 40188595), (10, 32150876), (17, 18912280), (20, 16075438), (34, 9456140), (40, 8037719), (68, 4728070), (85, 3782456), (136, 2364035), (170, 1891228), (340, 945614), (431, 745960), (680, 472807), (862, 372980), (1097, 293080), (1724, 186490), (2155, 149192), (2194, 146540), (3448, 93245), (4310, 74596), (4388, 73270), (5485, 58616), (7327, 43880), (8620, 37298), (8776, 36635), (10970, 29308), (14654, 21940), (17240, 18649)]