990129436

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1\times {\mathrm{1237}}^1$

素因数の和:1486

約数の個数: 48

約数和(自身を含む): 1871856000

約数和(自身を除く): 881726564

約数列:

[1, 2, 4, 17, 34, 68, 79, 149, 158, 298, 316, 596, 1237, 1343, 2474, 2533, 2686, 4948, 5066, 5372, 10132, 11771, 21029, 23542, 42058, 47084, 84116, 97723, 184313, 195446, 200107, 368626, 390892, 400214, 737252, 800428, 1661291, 3133321, 3322582, 6266642, 6645164, 12533284, 14560727, 29121454, 58242908, 247532359, 495064718, 990129436]

約数ペア:

[(1, 990129436), (2, 495064718), (4, 247532359), (17, 58242908), (34, 29121454), (68, 14560727), (79, 12533284), (149, 6645164), (158, 6266642), (298, 3322582), (316, 3133321), (596, 1661291), (1237, 800428), (1343, 737252), (2474, 400214), (2533, 390892), (2686, 368626), (4948, 200107), (5066, 195446), (5372, 184313), (10132, 97723), (11771, 84116), (21029, 47084), (23542, 42058)]