8541940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{947}}^1$

素因数の和:1008

約数の個数: 48

約数和(自身を含む): 20067264

約数和(自身を除く): 11525324

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 947, 1804, 1894, 2255, 3788, 4510, 4735, 9020, 9470, 10417, 18940, 20834, 38827, 41668, 52085, 77654, 104170, 155308, 194135, 208340, 388270, 427097, 776540, 854194, 1708388, 2135485, 4270970, 8541940]

約数ペア:

[(1, 8541940), (2, 4270970), (4, 2135485), (5, 1708388), (10, 854194), (11, 776540), (20, 427097), (22, 388270), (41, 208340), (44, 194135), (55, 155308), (82, 104170), (110, 77654), (164, 52085), (205, 41668), (220, 38827), (410, 20834), (451, 18940), (820, 10417), (902, 9470), (947, 9020), (1804, 4735), (1894, 4510), (2255, 3788)]