664863368

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{80923}}^1$

素因数の和:81021

約数の個数: 32

約数和(自身を含む): 1359523200

約数和(自身を除く): 694659832

約数列:

[1, 2, 4, 8, 13, 26, 52, 79, 104, 158, 316, 632, 1027, 2054, 4108, 8216, 80923, 161846, 323692, 647384, 1051999, 2103998, 4207996, 6392917, 8415992, 12785834, 25571668, 51143336, 83107921, 166215842, 332431684, 664863368]

約数ペア:

[(1, 664863368), (2, 332431684), (4, 166215842), (8, 83107921), (13, 51143336), (26, 25571668), (52, 12785834), (79, 8415992), (104, 6392917), (158, 4207996), (316, 2103998), (632, 1051999), (1027, 647384), (2054, 323692), (4108, 161846), (8216, 80923)]