13420940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1259}}^1$

素因数の和:1322

約数の個数: 48

約数和(自身を含む): 31116960

約数和(自身を除く): 17696020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 1259, 2132, 2518, 2665, 5036, 5330, 6295, 10660, 12590, 16367, 25180, 32734, 51619, 65468, 81835, 103238, 163670, 206476, 258095, 327340, 516190, 671047, 1032380, 1342094, 2684188, 3355235, 6710470, 13420940]

約数ペア:

[(1, 13420940), (2, 6710470), (4, 3355235), (5, 2684188), (10, 1342094), (13, 1032380), (20, 671047), (26, 516190), (41, 327340), (52, 258095), (65, 206476), (82, 163670), (130, 103238), (164, 81835), (205, 65468), (260, 51619), (410, 32734), (533, 25180), (820, 16367), (1066, 12590), (1259, 10660), (2132, 6295), (2518, 5330), (2665, 5036)]