20178284555

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{53551}}^1$

素因数の和:53628

約数の個数: 64

約数和(自身を含む): 31092719616

約数和(自身を除く): 10914435061

約数列:

[1, 5, 11, 13, 17, 31, 55, 65, 85, 143, 155, 187, 221, 341, 403, 527, 715, 935, 1105, 1705, 2015, 2431, 2635, 4433, 5797, 6851, 12155, 22165, 28985, 34255, 53551, 75361, 267755, 376805, 589061, 696163, 910367, 1660081, 2945305, 3480815, 4551835, 7657793, 8300405, 10014037, 11834771, 18260891, 21581053, 28221377, 38288965, 50070185, 59173855, 91304455, 107905265, 130182481, 141106885, 237391583, 310435147, 366877901, 650912405, 1186957915, 1552175735, 1834389505, 4035656911, 20178284555]

約数ペア:

[(1, 20178284555), (5, 4035656911), (11, 1834389505), (13, 1552175735), (17, 1186957915), (31, 650912405), (55, 366877901), (65, 310435147), (85, 237391583), (143, 141106885), (155, 130182481), (187, 107905265), (221, 91304455), (341, 59173855), (403, 50070185), (527, 38288965), (715, 28221377), (935, 21581053), (1105, 18260891), (1705, 11834771), (2015, 10014037), (2431, 8300405), (2635, 7657793), (4433, 4551835), (5797, 3480815), (6851, 2945305), (12155, 1660081), (22165, 910367), (28985, 696163), (34255, 589061), (53551, 376805), (75361, 267755)]