490293340

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1\times {\mathrm{1789}}^1$

素因数の和:2062

約数の個数: 48

約数和(自身を含む): 1050114240

約数和(自身を除く): 559820900

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 193, 284, 355, 386, 710, 772, 965, 1420, 1789, 1930, 3578, 3860, 7156, 8945, 13703, 17890, 27406, 35780, 54812, 68515, 127019, 137030, 254038, 274060, 345277, 508076, 635095, 690554, 1270190, 1381108, 1726385, 2540380, 3452770, 6905540, 24514667, 49029334, 98058668, 122573335, 245146670, 490293340]

約数ペア:

[(1, 490293340), (2, 245146670), (4, 122573335), (5, 98058668), (10, 49029334), (20, 24514667), (71, 6905540), (142, 3452770), (193, 2540380), (284, 1726385), (355, 1381108), (386, 1270190), (710, 690554), (772, 635095), (965, 508076), (1420, 345277), (1789, 274060), (1930, 254038), (3578, 137030), (3860, 127019), (7156, 68515), (8945, 54812), (13703, 35780), (17890, 27406)]