12778090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{7561}}^1$

素因数の和:7594

約数の個数: 24

約数和(自身を含む): 24909228

約数和(自身を除く): 12131138

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 7561, 15122, 37805, 75610, 98293, 196586, 491465, 982930, 1277809, 2555618, 6389045, 12778090]

約数ペア:

[(1, 12778090), (2, 6389045), (5, 2555618), (10, 1277809), (13, 982930), (26, 491465), (65, 196586), (130, 98293), (169, 75610), (338, 37805), (845, 15122), (1690, 7561)]