56726540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{1291}}^1$

素因数の和:1339

約数の個数: 48

約数和(自身を含む): 129148320

約数和(自身を除く): 72421780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1291, 1690, 2197, 2582, 3380, 4394, 5164, 6455, 8788, 10985, 12910, 16783, 21970, 25820, 33566, 43940, 67132, 83915, 167830, 218179, 335660, 436358, 872716, 1090895, 2181790, 2836327, 4363580, 5672654, 11345308, 14181635, 28363270, 56726540]

約数ペア:

[(1, 56726540), (2, 28363270), (4, 14181635), (5, 11345308), (10, 5672654), (13, 4363580), (20, 2836327), (26, 2181790), (52, 1090895), (65, 872716), (130, 436358), (169, 335660), (260, 218179), (338, 167830), (676, 83915), (845, 67132), (1291, 43940), (1690, 33566), (2197, 25820), (2582, 21970), (3380, 16783), (4394, 12910), (5164, 10985), (6455, 8788)]