490000940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{171329}}^1$

素因数の和:171362

約数の個数: 48

約数和(自身を含む): 1208904480

約数和(自身を除く): 718903540

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 171329, 342658, 685316, 856645, 1713290, 1884619, 2227277, 3426580, 3769238, 4454554, 7538476, 8909108, 9423095, 11136385, 18846190, 22272770, 24500047, 37692380, 44545540, 49000094, 98000188, 122500235, 245000470, 490000940]

約数ペア:

[(1, 490000940), (2, 245000470), (4, 122500235), (5, 98000188), (10, 49000094), (11, 44545540), (13, 37692380), (20, 24500047), (22, 22272770), (26, 18846190), (44, 11136385), (52, 9423095), (55, 8909108), (65, 7538476), (110, 4454554), (130, 3769238), (143, 3426580), (220, 2227277), (260, 1884619), (286, 1713290), (572, 856645), (715, 685316), (1430, 342658), (2860, 171329)]