218758260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{520853}}^1$

素因数の和:520872

約数の個数: 48

約数和(自身を含む): 700027776

約数和(自身を除く): 481269516

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 520853, 1041706, 1562559, 2083412, 2604265, 3125118, 3645971, 5208530, 6250236, 7291942, 7812795, 10417060, 10937913, 14583884, 15625590, 18229855, 21875826, 31251180, 36459710, 43751652, 54689565, 72919420, 109379130, 218758260]

約数ペア:

[(1, 218758260), (2, 109379130), (3, 72919420), (4, 54689565), (5, 43751652), (6, 36459710), (7, 31251180), (10, 21875826), (12, 18229855), (14, 15625590), (15, 14583884), (20, 10937913), (21, 10417060), (28, 7812795), (30, 7291942), (35, 6250236), (42, 5208530), (60, 3645971), (70, 3125118), (84, 2604265), (105, 2083412), (140, 1562559), (210, 1041706), (420, 520853)]