20147950460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{641}}^1\times {\mathrm{142873}}^1$

素因数の和:143534

約数の個数: 48

約数和(自身を含む): 46229454432

約数和(自身を除く): 26081503972

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 641, 1282, 2564, 3205, 6410, 7051, 12820, 14102, 28204, 35255, 70510, 141020, 142873, 285746, 571492, 714365, 1428730, 1571603, 2857460, 3143206, 6286412, 7858015, 15716030, 31432060, 91581593, 183163186, 366326372, 457907965, 915815930, 1007397523, 1831631860, 2014795046, 4029590092, 5036987615, 10073975230, 20147950460]

約数ペア:

[(1, 20147950460), (2, 10073975230), (4, 5036987615), (5, 4029590092), (10, 2014795046), (11, 1831631860), (20, 1007397523), (22, 915815930), (44, 457907965), (55, 366326372), (110, 183163186), (220, 91581593), (641, 31432060), (1282, 15716030), (2564, 7858015), (3205, 6286412), (6410, 3143206), (7051, 2857460), (12820, 1571603), (14102, 1428730), (28204, 714365), (35255, 571492), (70510, 285746), (141020, 142873)]