8347820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{331}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 19131168

約数和(自身を除く): 10783348

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 97, 130, 194, 260, 331, 388, 485, 662, 970, 1261, 1324, 1655, 1940, 2522, 3310, 4303, 5044, 6305, 6620, 8606, 12610, 17212, 21515, 25220, 32107, 43030, 64214, 86060, 128428, 160535, 321070, 417391, 642140, 834782, 1669564, 2086955, 4173910, 8347820]

約数ペア:

[(1, 8347820), (2, 4173910), (4, 2086955), (5, 1669564), (10, 834782), (13, 642140), (20, 417391), (26, 321070), (52, 160535), (65, 128428), (97, 86060), (130, 64214), (194, 43030), (260, 32107), (331, 25220), (388, 21515), (485, 17212), (662, 12610), (970, 8606), (1261, 6620), (1324, 6305), (1655, 5044), (1940, 4303), (2522, 3310)]