8644640

素因数分解:

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

素因数の和:669

約数の個数: 48

約数和(自身を含む): 20670552

約数和(自身を除く): 12025912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 160, 194, 388, 485, 557, 776, 970, 1114, 1552, 1940, 2228, 2785, 3104, 3880, 4456, 5570, 7760, 8912, 11140, 15520, 17824, 22280, 44560, 54029, 89120, 108058, 216116, 270145, 432232, 540290, 864464, 1080580, 1728928, 2161160, 4322320, 8644640]

約数ペア:

[(1, 8644640), (2, 4322320), (4, 2161160), (5, 1728928), (8, 1080580), (10, 864464), (16, 540290), (20, 432232), (32, 270145), (40, 216116), (80, 108058), (97, 89120), (160, 54029), (194, 44560), (388, 22280), (485, 17824), (557, 15520), (776, 11140), (970, 8912), (1114, 7760), (1552, 5570), (1940, 4456), (2228, 3880), (2785, 3104)]