19492640

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4201}}^1$

素因数の和:4245

約数の個数: 48

約数和(自身を含む): 47650680

約数和(自身を除く): 28158040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 80, 116, 145, 160, 232, 290, 464, 580, 928, 1160, 2320, 4201, 4640, 8402, 16804, 21005, 33608, 42010, 67216, 84020, 121829, 134432, 168040, 243658, 336080, 487316, 609145, 672160, 974632, 1218290, 1949264, 2436580, 3898528, 4873160, 9746320, 19492640]

約数ペア:

[(1, 19492640), (2, 9746320), (4, 4873160), (5, 3898528), (8, 2436580), (10, 1949264), (16, 1218290), (20, 974632), (29, 672160), (32, 609145), (40, 487316), (58, 336080), (80, 243658), (116, 168040), (145, 134432), (160, 121829), (232, 84020), (290, 67216), (464, 42010), (580, 33608), (928, 21005), (1160, 16804), (2320, 8402), (4201, 4640)]