81867776

素因数分解:

$2^{10}\times {\mathrm{31}}^1\times {\mathrm{2579}}^1$

素因数の和:2630

約数の個数: 44

約数和(自身を含む): 169000320

約数和(自身を除く): 87132544

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 512, 992, 1024, 1984, 2579, 3968, 5158, 7936, 10316, 15872, 20632, 31744, 41264, 79949, 82528, 159898, 165056, 319796, 330112, 639592, 660224, 1279184, 1320448, 2558368, 2640896, 5116736, 10233472, 20466944, 40933888, 81867776]

約数ペア:

[(1, 81867776), (2, 40933888), (4, 20466944), (8, 10233472), (16, 5116736), (31, 2640896), (32, 2558368), (62, 1320448), (64, 1279184), (124, 660224), (128, 639592), (248, 330112), (256, 319796), (496, 165056), (512, 159898), (992, 82528), (1024, 79949), (1984, 41264), (2579, 31744), (3968, 20632), (5158, 15872), (7936, 10316)]