1221370180

素因数分解:

$2^2\times 5^1\times {\mathrm{1321}}^1\times {\mathrm{46229}}^1$

素因数の和:47559

約数の個数: 24

約数和(自身を含む): 2566874520

約数和(自身を除く): 1345504340

約数列:

[1, 2, 4, 5, 10, 20, 1321, 2642, 5284, 6605, 13210, 26420, 46229, 92458, 184916, 231145, 462290, 924580, 61068509, 122137018, 244274036, 305342545, 610685090, 1221370180]

約数ペア:

[(1, 1221370180), (2, 610685090), (4, 305342545), (5, 244274036), (10, 122137018), (20, 61068509), (1321, 924580), (2642, 462290), (5284, 231145), (6605, 184916), (13210, 92458), (26420, 46229)]