2161160

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{557}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 4921560

約数和(自身を除く): 2760400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 557, 776, 970, 1114, 1940, 2228, 2785, 3880, 4456, 5570, 11140, 22280, 54029, 108058, 216116, 270145, 432232, 540290, 1080580, 2161160]

約数ペア:

[(1, 2161160), (2, 1080580), (4, 540290), (5, 432232), (8, 270145), (10, 216116), (20, 108058), (40, 54029), (97, 22280), (194, 11140), (388, 5570), (485, 4456), (557, 3880), (776, 2785), (970, 2228), (1114, 1940)]