64987904

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:497

約数の個数: 72

約数和(自身を含む): 141281280

約数和(自身を除く): 76293376

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 64, 76, 124, 128, 152, 248, 256, 304, 431, 496, 589, 608, 862, 992, 1178, 1216, 1724, 1984, 2356, 2432, 3448, 3968, 4712, 4864, 6896, 7936, 8189, 9424, 13361, 13792, 16378, 18848, 26722, 27584, 32756, 37696, 53444, 55168, 65512, 75392, 106888, 110336, 131024, 150784, 213776, 253859, 262048, 427552, 507718, 524096, 855104, 1015436, 1048192, 1710208, 2030872, 2096384, 3420416, 4061744, 8123488, 16246976, 32493952, 64987904]

約数ペア:

[(1, 64987904), (2, 32493952), (4, 16246976), (8, 8123488), (16, 4061744), (19, 3420416), (31, 2096384), (32, 2030872), (38, 1710208), (62, 1048192), (64, 1015436), (76, 855104), (124, 524096), (128, 507718), (152, 427552), (248, 262048), (256, 253859), (304, 213776), (431, 150784), (496, 131024), (589, 110336), (608, 106888), (862, 75392), (992, 65512), (1178, 55168), (1216, 53444), (1724, 37696), (1984, 32756), (2356, 27584), (2432, 26722), (3448, 18848), (3968, 16378), (4712, 13792), (4864, 13361), (6896, 9424), (7936, 8189)]