643654540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{967}}^1\times {\mathrm{1447}}^1$

素因数の和:2446

約数の個数: 48

約数和(自身を含む): 1412877312

約数和(自身を除く): 769222772

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 967, 1447, 1934, 2894, 3868, 4835, 5788, 7235, 9670, 14470, 19340, 22241, 28940, 33281, 44482, 66562, 88964, 111205, 133124, 166405, 222410, 332810, 444820, 665620, 1399249, 2798498, 5596996, 6996245, 13992490, 27984980, 32182727, 64365454, 128730908, 160913635, 321827270, 643654540]

約数ペア:

[(1, 643654540), (2, 321827270), (4, 160913635), (5, 128730908), (10, 64365454), (20, 32182727), (23, 27984980), (46, 13992490), (92, 6996245), (115, 5596996), (230, 2798498), (460, 1399249), (967, 665620), (1447, 444820), (1934, 332810), (2894, 222410), (3868, 166405), (4835, 133124), (5788, 111205), (7235, 88964), (9670, 66562), (14470, 44482), (19340, 33281), (22241, 28940)]