19225400

素因数分解:

$2^3\times 5^2\times {\mathrm{97}}^1\times {\mathrm{991}}^1$

素因数の和:1104

約数の個数: 48

約数和(自身を含む): 45205440

約数和(自身を除く): 25980040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 97, 100, 194, 200, 388, 485, 776, 970, 991, 1940, 1982, 2425, 3880, 3964, 4850, 4955, 7928, 9700, 9910, 19400, 19820, 24775, 39640, 49550, 96127, 99100, 192254, 198200, 384508, 480635, 769016, 961270, 1922540, 2403175, 3845080, 4806350, 9612700, 19225400]

約数ペア:

[(1, 19225400), (2, 9612700), (4, 4806350), (5, 3845080), (8, 2403175), (10, 1922540), (20, 961270), (25, 769016), (40, 480635), (50, 384508), (97, 198200), (100, 192254), (194, 99100), (200, 96127), (388, 49550), (485, 39640), (776, 24775), (970, 19820), (991, 19400), (1940, 9910), (1982, 9700), (2425, 7928), (3880, 4955), (3964, 4850)]