18745856

素因数分解:

$2^9\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:125

約数の個数: 80

約数和(自身を含む): 41247360

約数和(自身を除く): 22501504

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 41, 47, 64, 76, 82, 94, 128, 152, 164, 188, 256, 304, 328, 376, 512, 608, 656, 752, 779, 893, 1216, 1312, 1504, 1558, 1786, 1927, 2432, 2624, 3008, 3116, 3572, 3854, 4864, 5248, 6016, 6232, 7144, 7708, 9728, 10496, 12032, 12464, 14288, 15416, 20992, 24064, 24928, 28576, 30832, 36613, 49856, 57152, 61664, 73226, 99712, 114304, 123328, 146452, 199424, 228608, 246656, 292904, 398848, 457216, 493312, 585808, 986624, 1171616, 2343232, 4686464, 9372928, 18745856]

約数ペア:

[(1, 18745856), (2, 9372928), (4, 4686464), (8, 2343232), (16, 1171616), (19, 986624), (32, 585808), (38, 493312), (41, 457216), (47, 398848), (64, 292904), (76, 246656), (82, 228608), (94, 199424), (128, 146452), (152, 123328), (164, 114304), (188, 99712), (256, 73226), (304, 61664), (328, 57152), (376, 49856), (512, 36613), (608, 30832), (656, 28576), (752, 24928), (779, 24064), (893, 20992), (1216, 15416), (1312, 14288), (1504, 12464), (1558, 12032), (1786, 10496), (1927, 9728), (2432, 7708), (2624, 7144), (3008, 6232), (3116, 6016), (3572, 5248), (3854, 4864)]