20614340

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^2\times {\mathrm{277}}^1$

素因数の和:408

約数の個数: 36

約数和(自身を含む): 44170308

約数和(自身を除く): 23555968

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 277, 305, 554, 610, 1108, 1220, 1385, 2770, 3721, 5540, 7442, 14884, 16897, 18605, 33794, 37210, 67588, 74420, 84485, 168970, 337940, 1030717, 2061434, 4122868, 5153585, 10307170, 20614340]

約数ペア:

[(1, 20614340), (2, 10307170), (4, 5153585), (5, 4122868), (10, 2061434), (20, 1030717), (61, 337940), (122, 168970), (244, 84485), (277, 74420), (305, 67588), (554, 37210), (610, 33794), (1108, 18605), (1220, 16897), (1385, 14884), (2770, 7442), (3721, 5540)]