156628940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1\times {\mathrm{1237}}^1$

素因数の和:1746

約数の個数: 48

約数和(自身を含む): 355236672

約数和(自身を除く): 198607732

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 487, 974, 1237, 1948, 2435, 2474, 4870, 4948, 6185, 6331, 9740, 12370, 12662, 16081, 24740, 25324, 31655, 32162, 63310, 64324, 80405, 126620, 160810, 321620, 602419, 1204838, 2409676, 3012095, 6024190, 7831447, 12048380, 15662894, 31325788, 39157235, 78314470, 156628940]

約数ペア:

[(1, 156628940), (2, 78314470), (4, 39157235), (5, 31325788), (10, 15662894), (13, 12048380), (20, 7831447), (26, 6024190), (52, 3012095), (65, 2409676), (130, 1204838), (260, 602419), (487, 321620), (974, 160810), (1237, 126620), (1948, 80405), (2435, 64324), (2474, 63310), (4870, 32162), (4948, 31655), (6185, 25324), (6331, 24740), (9740, 16081), (12370, 12662)]