640728

素因数分解:

$2^3\times 3^2\times {\mathrm{11}}^1\times {\mathrm{809}}^1$

素因数の和:832

約数の個数: 48

約数和(自身を含む): 1895400

約数和(自身を除く): 1254672

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 33, 36, 44, 66, 72, 88, 99, 132, 198, 264, 396, 792, 809, 1618, 2427, 3236, 4854, 6472, 7281, 8899, 9708, 14562, 17798, 19416, 26697, 29124, 35596, 53394, 58248, 71192, 80091, 106788, 160182, 213576, 320364, 640728]

約数ペア:

[(1, 640728), (2, 320364), (3, 213576), (4, 160182), (6, 106788), (8, 80091), (9, 71192), (11, 58248), (12, 53394), (18, 35596), (22, 29124), (24, 26697), (33, 19416), (36, 17798), (44, 14562), (66, 9708), (72, 8899), (88, 7281), (99, 6472), (132, 4854), (198, 3236), (264, 2427), (396, 1618), (792, 809)]