80611840

素因数分解:

$2^9\times 5^1\times {\mathrm{31489}}^1$

素因数の和:31512

約数の個数: 40

約数和(自身を含む): 193285620

約数和(自身を除く): 112673780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 31489, 62978, 125956, 157445, 251912, 314890, 503824, 629780, 1007648, 1259560, 2015296, 2519120, 4030592, 5038240, 8061184, 10076480, 16122368, 20152960, 40305920, 80611840]

約数ペア:

[(1, 80611840), (2, 40305920), (4, 20152960), (5, 16122368), (8, 10076480), (10, 8061184), (16, 5038240), (20, 4030592), (32, 2519120), (40, 2015296), (64, 1259560), (80, 1007648), (128, 629780), (160, 503824), (256, 314890), (320, 251912), (512, 157445), (640, 125956), (1280, 62978), (2560, 31489)]