19197710

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{29}}^1\times {\mathrm{193}}^1$

素因数の和:250

約数の個数: 64

約数和(自身を含む): 41904000

約数和(自身を除く): 22706290

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 49, 58, 70, 98, 145, 193, 203, 245, 290, 343, 386, 406, 490, 686, 965, 1015, 1351, 1421, 1715, 1930, 2030, 2702, 2842, 3430, 5597, 6755, 7105, 9457, 9947, 11194, 13510, 14210, 18914, 19894, 27985, 39179, 47285, 49735, 55970, 66199, 78358, 94570, 99470, 132398, 195895, 274253, 330995, 391790, 548506, 661990, 1371265, 1919771, 2742530, 3839542, 9598855, 19197710]

約数ペア:

[(1, 19197710), (2, 9598855), (5, 3839542), (7, 2742530), (10, 1919771), (14, 1371265), (29, 661990), (35, 548506), (49, 391790), (58, 330995), (70, 274253), (98, 195895), (145, 132398), (193, 99470), (203, 94570), (245, 78358), (290, 66199), (343, 55970), (386, 49735), (406, 47285), (490, 39179), (686, 27985), (965, 19894), (1015, 18914), (1351, 14210), (1421, 13510), (1715, 11194), (1930, 9947), (2030, 9457), (2702, 7105), (2842, 6755), (3430, 5597)]