66627820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{6703}}^1$

素因数の和:6790

約数の個数: 48

約数和(自身を含む): 162183168

約数和(自身を除く): 95555348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 6703, 9940, 13406, 26812, 33515, 46921, 67030, 93842, 134060, 187684, 234605, 469210, 475913, 938420, 951826, 1903652, 2379565, 3331391, 4759130, 6662782, 9518260, 13325564, 16656955, 33313910, 66627820]

約数ペア:

[(1, 66627820), (2, 33313910), (4, 16656955), (5, 13325564), (7, 9518260), (10, 6662782), (14, 4759130), (20, 3331391), (28, 2379565), (35, 1903652), (70, 951826), (71, 938420), (140, 475913), (142, 469210), (284, 234605), (355, 187684), (497, 134060), (710, 93842), (994, 67030), (1420, 46921), (1988, 33515), (2485, 26812), (4970, 13406), (6703, 9940)]