25578410

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{577}}^1$

素因数の和:639

約数の個数: 64

約数和(自身を含む): 55931904

約数和(自身を除く): 30353494

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 31, 55, 62, 65, 110, 130, 143, 155, 286, 310, 341, 403, 577, 682, 715, 806, 1154, 1430, 1705, 2015, 2885, 3410, 4030, 4433, 5770, 6347, 7501, 8866, 12694, 15002, 17887, 22165, 31735, 35774, 37505, 44330, 63470, 75010, 82511, 89435, 165022, 178870, 196757, 232531, 393514, 412555, 465062, 825110, 983785, 1162655, 1967570, 2325310, 2557841, 5115682, 12789205, 25578410]

約数ペア:

[(1, 25578410), (2, 12789205), (5, 5115682), (10, 2557841), (11, 2325310), (13, 1967570), (22, 1162655), (26, 983785), (31, 825110), (55, 465062), (62, 412555), (65, 393514), (110, 232531), (130, 196757), (143, 178870), (155, 165022), (286, 89435), (310, 82511), (341, 75010), (403, 63470), (577, 44330), (682, 37505), (715, 35774), (806, 31735), (1154, 22165), (1430, 17887), (1705, 15002), (2015, 12694), (2885, 8866), (3410, 7501), (4030, 6347), (4433, 5770)]