55174660

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{223}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 118540800

約数和(自身を除く): 63366140

約数列:

[1, 2, 4, 5, 10, 20, 89, 139, 178, 223, 278, 356, 445, 446, 556, 695, 890, 892, 1115, 1390, 1780, 2230, 2780, 4460, 12371, 19847, 24742, 30997, 39694, 49484, 61855, 61994, 79388, 99235, 123710, 123988, 154985, 198470, 247420, 309970, 396940, 619940, 2758733, 5517466, 11034932, 13793665, 27587330, 55174660]

約数ペア:

[(1, 55174660), (2, 27587330), (4, 13793665), (5, 11034932), (10, 5517466), (20, 2758733), (89, 619940), (139, 396940), (178, 309970), (223, 247420), (278, 198470), (356, 154985), (445, 123988), (446, 123710), (556, 99235), (695, 79388), (890, 61994), (892, 61855), (1115, 49484), (1390, 39694), (1780, 30997), (2230, 24742), (2780, 19847), (4460, 12371)]