28258516

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{389}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 58705920

約数和(自身を除く): 30447404

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 127, 143, 254, 286, 389, 508, 572, 778, 1397, 1556, 1651, 2794, 3302, 4279, 5057, 5588, 6604, 8558, 10114, 17116, 18161, 20228, 36322, 49403, 55627, 72644, 98806, 111254, 197612, 222508, 543433, 642239, 1086866, 1284478, 2173732, 2568956, 7064629, 14129258, 28258516]

約数ペア:

[(1, 28258516), (2, 14129258), (4, 7064629), (11, 2568956), (13, 2173732), (22, 1284478), (26, 1086866), (44, 642239), (52, 543433), (127, 222508), (143, 197612), (254, 111254), (286, 98806), (389, 72644), (508, 55627), (572, 49403), (778, 36322), (1397, 20228), (1556, 18161), (1651, 17116), (2794, 10114), (3302, 8558), (4279, 6604), (5057, 5588)]