398410240

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8191}}^1$

素因数の和:8233

約数の個数: 80

約数和(自身を含む): 1005649920

約数和(自身を除く): 607239680

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, 1216, 1280, 1520, 2432, 2560, 3040, 4864, 6080, 8191, 9728, 12160, 16382, 24320, 32764, 40955, 48640, 65528, 81910, 131056, 155629, 163820, 262112, 311258, 327640, 524224, 622516, 655280, 778145, 1048448, 1245032, 1310560, 1556290, 2096896, 2490064, 2621120, 3112580, 4193792, 4980128, 5242240, 6225160, 9960256, 10484480, 12450320, 19920512, 20968960, 24900640, 39841024, 49801280, 79682048, 99602560, 199205120, 398410240]

約数ペア:

[(1, 398410240), (2, 199205120), (4, 99602560), (5, 79682048), (8, 49801280), (10, 39841024), (16, 24900640), (19, 20968960), (20, 19920512), (32, 12450320), (38, 10484480), (40, 9960256), (64, 6225160), (76, 5242240), (80, 4980128), (95, 4193792), (128, 3112580), (152, 2621120), (160, 2490064), (190, 2096896), (256, 1556290), (304, 1310560), (320, 1245032), (380, 1048448), (512, 778145), (608, 655280), (640, 622516), (760, 524224), (1216, 327640), (1280, 311258), (1520, 262112), (2432, 163820), (2560, 155629), (3040, 131056), (4864, 81910), (6080, 65528), (8191, 48640), (9728, 40955), (12160, 32764), (16382, 24320)]