778240

素因数分解:

$2^{13}\times 5^1\times {\mathrm{19}}^1$

素因数の和:50

約数の個数: 56

約数和(自身を含む): 1965960

約数和(自身を除く): 1187720

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 512, 608, 640, 760, 1024, 1216, 1280, 1520, 2048, 2432, 2560, 3040, 4096, 4864, 5120, 6080, 8192, 9728, 10240, 12160, 19456, 20480, 24320, 38912, 40960, 48640, 77824, 97280, 155648, 194560, 389120, 778240]

約数ペア:

[(1, 778240), (2, 389120), (4, 194560), (5, 155648), (8, 97280), (10, 77824), (16, 48640), (19, 40960), (20, 38912), (32, 24320), (38, 20480), (40, 19456), (64, 12160), (76, 10240), (80, 9728), (95, 8192), (128, 6080), (152, 5120), (160, 4864), (190, 4096), (256, 3040), (304, 2560), (320, 2432), (380, 2048), (512, 1520), (608, 1280), (640, 1216), (760, 1024)]