16801280

素因数分解:

$2^9\times 5^1\times {\mathrm{6563}}^1$

素因数の和:6586

約数の個数: 40

約数和(自身を含む): 40289832

約数和(自身を除く): 23488552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 6563, 13126, 26252, 32815, 52504, 65630, 105008, 131260, 210016, 262520, 420032, 525040, 840064, 1050080, 1680128, 2100160, 3360256, 4200320, 8400640, 16801280]

約数ペア:

[(1, 16801280), (2, 8400640), (4, 4200320), (5, 3360256), (8, 2100160), (10, 1680128), (16, 1050080), (20, 840064), (32, 525040), (40, 420032), (64, 262520), (80, 210016), (128, 131260), (160, 105008), (256, 65630), (320, 52504), (512, 32815), (640, 26252), (1280, 13126), (2560, 6563)]