18178976

素因数分解:

$2^5\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:277

約数の個数: 48

約数和(自身を含む): 37185120

約数和(自身を除く): 19006144

約数列:

[1, 2, 4, 8, 16, 32, 61, 67, 122, 134, 139, 244, 268, 278, 488, 536, 556, 976, 1072, 1112, 1952, 2144, 2224, 4087, 4448, 8174, 8479, 9313, 16348, 16958, 18626, 32696, 33916, 37252, 65392, 67832, 74504, 130784, 135664, 149008, 271328, 298016, 568093, 1136186, 2272372, 4544744, 9089488, 18178976]

約数ペア:

[(1, 18178976), (2, 9089488), (4, 4544744), (8, 2272372), (16, 1136186), (32, 568093), (61, 298016), (67, 271328), (122, 149008), (134, 135664), (139, 130784), (244, 74504), (268, 67832), (278, 65392), (488, 37252), (536, 33916), (556, 32696), (976, 18626), (1072, 16958), (1112, 16348), (1952, 9313), (2144, 8479), (2224, 8174), (4087, 4448)]