18316864

素因数分解:

$2^6\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:251

約数の個数: 56

約数和(自身を含む): 38404800

約数和(自身を除く): 20087936

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 71, 116, 139, 142, 232, 278, 284, 464, 556, 568, 928, 1112, 1136, 1856, 2059, 2224, 2272, 4031, 4118, 4448, 4544, 8062, 8236, 8896, 9869, 16124, 16472, 19738, 32248, 32944, 39476, 64496, 65888, 78952, 128992, 131776, 157904, 257984, 286201, 315808, 572402, 631616, 1144804, 2289608, 4579216, 9158432, 18316864]

約数ペア:

[(1, 18316864), (2, 9158432), (4, 4579216), (8, 2289608), (16, 1144804), (29, 631616), (32, 572402), (58, 315808), (64, 286201), (71, 257984), (116, 157904), (139, 131776), (142, 128992), (232, 78952), (278, 65888), (284, 64496), (464, 39476), (556, 32944), (568, 32248), (928, 19738), (1112, 16472), (1136, 16124), (1856, 9869), (2059, 8896), (2224, 8236), (2272, 8062), (4031, 4544), (4118, 4448)]