131451904

素因数分解:

$2^{10}\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:193

約数の個数: 88

約数和(自身を含む): 280619136

約数和(自身を除く): 149167232

約数列:

[1, 2, 4, 8, 16, 31, 32, 41, 62, 64, 82, 101, 124, 128, 164, 202, 248, 256, 328, 404, 496, 512, 656, 808, 992, 1024, 1271, 1312, 1616, 1984, 2542, 2624, 3131, 3232, 3968, 4141, 5084, 5248, 6262, 6464, 7936, 8282, 10168, 10496, 12524, 12928, 15872, 16564, 20336, 20992, 25048, 25856, 31744, 33128, 40672, 41984, 50096, 51712, 66256, 81344, 100192, 103424, 128371, 132512, 162688, 200384, 256742, 265024, 325376, 400768, 513484, 530048, 650752, 801536, 1026968, 1060096, 1301504, 1603072, 2053936, 2120192, 3206144, 4107872, 4240384, 8215744, 16431488, 32862976, 65725952, 131451904]

約数ペア:

[(1, 131451904), (2, 65725952), (4, 32862976), (8, 16431488), (16, 8215744), (31, 4240384), (32, 4107872), (41, 3206144), (62, 2120192), (64, 2053936), (82, 1603072), (101, 1301504), (124, 1060096), (128, 1026968), (164, 801536), (202, 650752), (248, 530048), (256, 513484), (328, 400768), (404, 325376), (496, 265024), (512, 256742), (656, 200384), (808, 162688), (992, 132512), (1024, 128371), (1271, 103424), (1312, 100192), (1616, 81344), (1984, 66256), (2542, 51712), (2624, 50096), (3131, 41984), (3232, 40672), (3968, 33128), (4141, 31744), (5084, 25856), (5248, 25048), (6262, 20992), (6464, 20336), (7936, 16564), (8282, 15872), (10168, 12928), (10496, 12524)]