19794530

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:256

約数の個数: 64

約数和(自身を含む): 43200000

約数和(自身を除く): 23405470

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 49, 58, 70, 98, 145, 199, 203, 245, 290, 343, 398, 406, 490, 686, 995, 1015, 1393, 1421, 1715, 1990, 2030, 2786, 2842, 3430, 5771, 6965, 7105, 9751, 9947, 11542, 13930, 14210, 19502, 19894, 28855, 40397, 48755, 49735, 57710, 68257, 80794, 97510, 99470, 136514, 201985, 282779, 341285, 403970, 565558, 682570, 1413895, 1979453, 2827790, 3958906, 9897265, 19794530]

約数ペア:

[(1, 19794530), (2, 9897265), (5, 3958906), (7, 2827790), (10, 1979453), (14, 1413895), (29, 682570), (35, 565558), (49, 403970), (58, 341285), (70, 282779), (98, 201985), (145, 136514), (199, 99470), (203, 97510), (245, 80794), (290, 68257), (343, 57710), (398, 49735), (406, 48755), (490, 40397), (686, 28855), (995, 19894), (1015, 19502), (1393, 14210), (1421, 13930), (1715, 11542), (1990, 9947), (2030, 9751), (2786, 7105), (2842, 6965), (3430, 5771)]