2259220

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:160

約数の個数: 48

約数和(自身を含む): 5056128

約数和(自身を除く): 2796908

約数列:

[1, 2, 4, 5, 10, 20, 37, 43, 71, 74, 86, 142, 148, 172, 185, 215, 284, 355, 370, 430, 710, 740, 860, 1420, 1591, 2627, 3053, 3182, 5254, 6106, 6364, 7955, 10508, 12212, 13135, 15265, 15910, 26270, 30530, 31820, 52540, 61060, 112961, 225922, 451844, 564805, 1129610, 2259220]

約数ペア:

[(1, 2259220), (2, 1129610), (4, 564805), (5, 451844), (10, 225922), (20, 112961), (37, 61060), (43, 52540), (71, 31820), (74, 30530), (86, 26270), (142, 15910), (148, 15265), (172, 13135), (185, 12212), (215, 10508), (284, 7955), (355, 6364), (370, 6106), (430, 5254), (710, 3182), (740, 3053), (860, 2627), (1420, 1591)]