199814180

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1\times {\mathrm{811}}^1$

素因数の和:1044

約数の個数: 48

約数和(自身を含む): 427800576

約数和(自身を除く): 227986396

約数列:

[1, 2, 4, 5, 10, 20, 97, 127, 194, 254, 388, 485, 508, 635, 811, 970, 1270, 1622, 1940, 2540, 3244, 4055, 8110, 12319, 16220, 24638, 49276, 61595, 78667, 102997, 123190, 157334, 205994, 246380, 314668, 393335, 411988, 514985, 786670, 1029970, 1573340, 2059940, 9990709, 19981418, 39962836, 49953545, 99907090, 199814180]

約数ペア:

[(1, 199814180), (2, 99907090), (4, 49953545), (5, 39962836), (10, 19981418), (20, 9990709), (97, 2059940), (127, 1573340), (194, 1029970), (254, 786670), (388, 514985), (485, 411988), (508, 393335), (635, 314668), (811, 246380), (970, 205994), (1270, 157334), (1622, 123190), (1940, 102997), (2540, 78667), (3244, 61595), (4055, 49276), (8110, 24638), (12319, 16220)]