820842218

素因数分解:

$2^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{887}}^1$

素因数の和:1000

約数の個数: 64

約数和(自身を含む): 1534464000

約数和(自身を除く): 713621782

約数列:

[1, 2, 7, 14, 19, 38, 49, 71, 98, 133, 142, 266, 343, 497, 686, 887, 931, 994, 1349, 1774, 1862, 2698, 3479, 6209, 6517, 6958, 9443, 12418, 13034, 16853, 18886, 24353, 33706, 43463, 48706, 62977, 66101, 86926, 117971, 125954, 132202, 235942, 304241, 440839, 462707, 608482, 825797, 881678, 925414, 1196563, 1651594, 2393126, 3085873, 5780579, 6171746, 8375941, 11561158, 16751882, 21601111, 43202222, 58631587, 117263174, 410421109, 820842218]

約数ペア:

[(1, 820842218), (2, 410421109), (7, 117263174), (14, 58631587), (19, 43202222), (38, 21601111), (49, 16751882), (71, 11561158), (98, 8375941), (133, 6171746), (142, 5780579), (266, 3085873), (343, 2393126), (497, 1651594), (686, 1196563), (887, 925414), (931, 881678), (994, 825797), (1349, 608482), (1774, 462707), (1862, 440839), (2698, 304241), (3479, 235942), (6209, 132202), (6517, 125954), (6958, 117971), (9443, 86926), (12418, 66101), (13034, 62977), (16853, 48706), (18886, 43463), (24353, 33706)]