25657088

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:161

約数の個数: 72

約数和(自身を含む): 54746496

約数和(自身を除く): 29089408

約数列:

[1, 2, 4, 8, 16, 31, 32, 53, 61, 62, 64, 106, 122, 124, 128, 212, 244, 248, 256, 424, 488, 496, 848, 976, 992, 1643, 1696, 1891, 1952, 1984, 3233, 3286, 3392, 3782, 3904, 3968, 6466, 6572, 6784, 7564, 7808, 7936, 12932, 13144, 13568, 15128, 15616, 25864, 26288, 30256, 51728, 52576, 60512, 100223, 103456, 105152, 121024, 200446, 206912, 210304, 242048, 400892, 413824, 420608, 484096, 801784, 827648, 1603568, 3207136, 6414272, 12828544, 25657088]

約数ペア:

[(1, 25657088), (2, 12828544), (4, 6414272), (8, 3207136), (16, 1603568), (31, 827648), (32, 801784), (53, 484096), (61, 420608), (62, 413824), (64, 400892), (106, 242048), (122, 210304), (124, 206912), (128, 200446), (212, 121024), (244, 105152), (248, 103456), (256, 100223), (424, 60512), (488, 52576), (496, 51728), (848, 30256), (976, 26288), (992, 25864), (1643, 15616), (1696, 15128), (1891, 13568), (1952, 13144), (1984, 12932), (3233, 7936), (3286, 7808), (3392, 7564), (3782, 6784), (3904, 6572), (3968, 6466)]