12589940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{643}}^1$

素因数の和:752

約数の個数: 48

約数和(自身を含む): 29211840

約数和(自身を除く): 16621900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 89, 110, 178, 220, 356, 445, 643, 890, 979, 1286, 1780, 1958, 2572, 3215, 3916, 4895, 6430, 7073, 9790, 12860, 14146, 19580, 28292, 35365, 57227, 70730, 114454, 141460, 228908, 286135, 572270, 629497, 1144540, 1258994, 2517988, 3147485, 6294970, 12589940]

約数ペア:

[(1, 12589940), (2, 6294970), (4, 3147485), (5, 2517988), (10, 1258994), (11, 1144540), (20, 629497), (22, 572270), (44, 286135), (55, 228908), (89, 141460), (110, 114454), (178, 70730), (220, 57227), (356, 35365), (445, 28292), (643, 19580), (890, 14146), (979, 12860), (1286, 9790), (1780, 7073), (1958, 6430), (2572, 4895), (3215, 3916)]