1280180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^2$

素因数の和:77

約数の個数: 54

約数和(自身を含む): 3089058

約数和(自身を除く): 1808878

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 121, 220, 230, 242, 253, 460, 484, 506, 529, 605, 1012, 1058, 1210, 1265, 2116, 2420, 2530, 2645, 2783, 5060, 5290, 5566, 5819, 10580, 11132, 11638, 13915, 23276, 27830, 29095, 55660, 58190, 64009, 116380, 128018, 256036, 320045, 640090, 1280180]

約数ペア:

[(1, 1280180), (2, 640090), (4, 320045), (5, 256036), (10, 128018), (11, 116380), (20, 64009), (22, 58190), (23, 55660), (44, 29095), (46, 27830), (55, 23276), (92, 13915), (110, 11638), (115, 11132), (121, 10580), (220, 5819), (230, 5566), (242, 5290), (253, 5060), (460, 2783), (484, 2645), (506, 2530), (529, 2420), (605, 2116), (1012, 1265), (1058, 1210)]