20551380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{461}}^1\times {\mathrm{743}}^1$

素因数の和:1216

約数の個数: 48

約数和(自身を含む): 57746304

約数和(自身を除く): 37194924

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 461, 743, 922, 1383, 1486, 1844, 2229, 2305, 2766, 2972, 3715, 4458, 4610, 5532, 6915, 7430, 8916, 9220, 11145, 13830, 14860, 22290, 27660, 44580, 342523, 685046, 1027569, 1370092, 1712615, 2055138, 3425230, 4110276, 5137845, 6850460, 10275690, 20551380]

約数ペア:

[(1, 20551380), (2, 10275690), (3, 6850460), (4, 5137845), (5, 4110276), (6, 3425230), (10, 2055138), (12, 1712615), (15, 1370092), (20, 1027569), (30, 685046), (60, 342523), (461, 44580), (743, 27660), (922, 22290), (1383, 14860), (1486, 13830), (1844, 11145), (2229, 9220), (2305, 8916), (2766, 7430), (2972, 6915), (3715, 5532), (4458, 4610)]