194797540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{197}}^1\times {\mathrm{1009}}^1$

素因数の和:1229

約数の個数: 72

約数和(自身を含む): 478752120

約数和(自身を除く): 283954580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 197, 245, 394, 490, 788, 980, 985, 1009, 1379, 1970, 2018, 2758, 3940, 4036, 5045, 5516, 6895, 7063, 9653, 10090, 13790, 14126, 19306, 20180, 27580, 28252, 35315, 38612, 48265, 49441, 70630, 96530, 98882, 141260, 193060, 197764, 198773, 247205, 397546, 494410, 795092, 988820, 993865, 1391411, 1987730, 2782822, 3975460, 5565644, 6957055, 9739877, 13914110, 19479754, 27828220, 38959508, 48699385, 97398770, 194797540]

約数ペア:

[(1, 194797540), (2, 97398770), (4, 48699385), (5, 38959508), (7, 27828220), (10, 19479754), (14, 13914110), (20, 9739877), (28, 6957055), (35, 5565644), (49, 3975460), (70, 2782822), (98, 1987730), (140, 1391411), (196, 993865), (197, 988820), (245, 795092), (394, 494410), (490, 397546), (788, 247205), (980, 198773), (985, 197764), (1009, 193060), (1379, 141260), (1970, 98882), (2018, 96530), (2758, 70630), (3940, 49441), (4036, 48265), (5045, 38612), (5516, 35315), (6895, 28252), (7063, 27580), (9653, 20180), (10090, 19306), (13790, 14126)]