20728832

素因数分解:

$2^{10}\times {\mathrm{31}}^1\times {\mathrm{653}}^1$

素因数の和:704

約数の個数: 44

約数和(自身を含む): 42839616

約数和(自身を除く): 22110784

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 512, 653, 992, 1024, 1306, 1984, 2612, 3968, 5224, 7936, 10448, 15872, 20243, 20896, 31744, 40486, 41792, 80972, 83584, 161944, 167168, 323888, 334336, 647776, 668672, 1295552, 2591104, 5182208, 10364416, 20728832]

約数ペア:

[(1, 20728832), (2, 10364416), (4, 5182208), (8, 2591104), (16, 1295552), (31, 668672), (32, 647776), (62, 334336), (64, 323888), (124, 167168), (128, 161944), (248, 83584), (256, 80972), (496, 41792), (512, 40486), (653, 31744), (992, 20896), (1024, 20243), (1306, 15872), (1984, 10448), (2612, 7936), (3968, 5224)]