4357240

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1123}}^1$

素因数の和:1231

約数の個数: 32

約数和(自身を含む): 9913680

約数和(自身を除く): 5556440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1123, 1940, 2246, 3880, 4492, 5615, 8984, 11230, 22460, 44920, 108931, 217862, 435724, 544655, 871448, 1089310, 2178620, 4357240]

約数ペア:

[(1, 4357240), (2, 2178620), (4, 1089310), (5, 871448), (8, 544655), (10, 435724), (20, 217862), (40, 108931), (97, 44920), (194, 22460), (388, 11230), (485, 8984), (776, 5615), (970, 4492), (1123, 3880), (1940, 2246)]