1978912

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:161

約数の個数: 48

約数和(自身を含む): 4318272

約数和(自身を除く): 2339360

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 67, 71, 104, 134, 142, 208, 268, 284, 416, 536, 568, 871, 923, 1072, 1136, 1742, 1846, 2144, 2272, 3484, 3692, 4757, 6968, 7384, 9514, 13936, 14768, 19028, 27872, 29536, 38056, 61841, 76112, 123682, 152224, 247364, 494728, 989456, 1978912]

約数ペア:

[(1, 1978912), (2, 989456), (4, 494728), (8, 247364), (13, 152224), (16, 123682), (26, 76112), (32, 61841), (52, 38056), (67, 29536), (71, 27872), (104, 19028), (134, 14768), (142, 13936), (208, 9514), (268, 7384), (284, 6968), (416, 4757), (536, 3692), (568, 3484), (871, 2272), (923, 2144), (1072, 1846), (1136, 1742)]