289492528

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{20773}}^1$

素因数の和:20861

約数の個数: 40

約数和(自身を含む): 613082288

約数和(自身を除く): 323589760

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 67, 104, 134, 208, 268, 536, 871, 1072, 1742, 3484, 6968, 13936, 20773, 41546, 83092, 166184, 270049, 332368, 540098, 1080196, 1391791, 2160392, 2783582, 4320784, 5567164, 11134328, 18093283, 22268656, 36186566, 72373132, 144746264, 289492528]

約数ペア:

[(1, 289492528), (2, 144746264), (4, 72373132), (8, 36186566), (13, 22268656), (16, 18093283), (26, 11134328), (52, 5567164), (67, 4320784), (104, 2783582), (134, 2160392), (208, 1391791), (268, 1080196), (536, 540098), (871, 332368), (1072, 270049), (1742, 166184), (3484, 83092), (6968, 41546), (13936, 20773)]