1309360

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1259}}^1$

素因数の和:1285

約数の個数: 40

約数和(自身を含む): 3281040

約数和(自身を除く): 1971680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1259, 2518, 5036, 6295, 10072, 12590, 16367, 20144, 25180, 32734, 50360, 65468, 81835, 100720, 130936, 163670, 261872, 327340, 654680, 1309360]

約数ペア:

[(1, 1309360), (2, 654680), (4, 327340), (5, 261872), (8, 163670), (10, 130936), (13, 100720), (16, 81835), (20, 65468), (26, 50360), (40, 32734), (52, 25180), (65, 20144), (80, 16367), (104, 12590), (130, 10072), (208, 6295), (260, 5036), (520, 2518), (1040, 1259)]