66614860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{256211}}^1$

素因数の和:256233

約数の個数: 24

約数和(自身を含む): 150652656

約数和(自身を除く): 84037796

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 256211, 512422, 1024844, 1281055, 2562110, 3330743, 5124220, 6661486, 13322972, 16653715, 33307430, 66614860]

約数ペア:

[(1, 66614860), (2, 33307430), (4, 16653715), (5, 13322972), (10, 6661486), (13, 5124220), (20, 3330743), (26, 2562110), (52, 1281055), (65, 1024844), (130, 512422), (260, 256211)]