66954940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257519}}^1$

素因数の和:257541

約数の個数: 24

約数和(自身を含む): 151421760

約数和(自身を除く): 84466820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 257519, 515038, 1030076, 1287595, 2575190, 3347747, 5150380, 6695494, 13390988, 16738735, 33477470, 66954940]

約数ペア:

[(1, 66954940), (2, 33477470), (4, 16738735), (5, 13390988), (10, 6695494), (13, 5150380), (20, 3347747), (26, 2575190), (52, 1287595), (65, 1030076), (130, 515038), (260, 257519)]