2021142440

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{520913}}^1$

素因数の和:521021

約数の個数: 32

約数和(自身を含む): 4594461480

約数和(自身を除く): 2573319040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 520913, 1041826, 2083652, 2604565, 4167304, 5209130, 10418260, 20836520, 50528561, 101057122, 202114244, 252642805, 404228488, 505285610, 1010571220, 2021142440]

約数ペア:

[(1, 2021142440), (2, 1010571220), (4, 505285610), (5, 404228488), (8, 252642805), (10, 202114244), (20, 101057122), (40, 50528561), (97, 20836520), (194, 10418260), (388, 5209130), (485, 4167304), (776, 2604565), (970, 2083652), (1940, 1041826), (3880, 520913)]