5278780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 12136320

約数和(自身を除く): 6857540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 257, 260, 316, 395, 514, 790, 1027, 1028, 1285, 1580, 2054, 2570, 3341, 4108, 5135, 5140, 6682, 10270, 13364, 16705, 20303, 20540, 33410, 40606, 66820, 81212, 101515, 203030, 263939, 406060, 527878, 1055756, 1319695, 2639390, 5278780]

約数ペア:

[(1, 5278780), (2, 2639390), (4, 1319695), (5, 1055756), (10, 527878), (13, 406060), (20, 263939), (26, 203030), (52, 101515), (65, 81212), (79, 66820), (130, 40606), (158, 33410), (257, 20540), (260, 20303), (316, 16705), (395, 13364), (514, 10270), (790, 6682), (1027, 5140), (1028, 5135), (1285, 4108), (1580, 3341), (2054, 2570)]