81327844

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{17573}}^1$

素因数の和:17679

約数の個数: 24

約数和(自身を含む): 155002680

約数和(自身を除く): 73674836

約数列:

[1, 2, 4, 13, 26, 52, 89, 178, 356, 1157, 2314, 4628, 17573, 35146, 70292, 228449, 456898, 913796, 1563997, 3127994, 6255988, 20331961, 40663922, 81327844]

約数ペア:

[(1, 81327844), (2, 40663922), (4, 20331961), (13, 6255988), (26, 3127994), (52, 1563997), (89, 913796), (178, 456898), (356, 228449), (1157, 70292), (2314, 35146), (4628, 17573)]