1978808

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{359}}^1$

素因数の和:431

約数の個数: 32

約数和(自身を含む): 4082400

約数和(自身を除く): 2103592

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 212, 359, 424, 689, 718, 1378, 1436, 2756, 2872, 4667, 5512, 9334, 18668, 19027, 37336, 38054, 76108, 152216, 247351, 494702, 989404, 1978808]

約数ペア:

[(1, 1978808), (2, 989404), (4, 494702), (8, 247351), (13, 152216), (26, 76108), (52, 38054), (53, 37336), (104, 19027), (106, 18668), (212, 9334), (359, 5512), (424, 4667), (689, 2872), (718, 2756), (1378, 1436)]