51361280

素因数分解:

$2^9\times 5^1\times {\mathrm{20063}}^1$

素因数の和:20086

約数の個数: 40

約数和(自身を含む): 123152832

約数和(自身を除く): 71791552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 20063, 40126, 80252, 100315, 160504, 200630, 321008, 401260, 642016, 802520, 1284032, 1605040, 2568064, 3210080, 5136128, 6420160, 10272256, 12840320, 25680640, 51361280]

約数ペア:

[(1, 51361280), (2, 25680640), (4, 12840320), (5, 10272256), (8, 6420160), (10, 5136128), (16, 3210080), (20, 2568064), (32, 1605040), (40, 1284032), (64, 802520), (80, 642016), (128, 401260), (160, 321008), (256, 200630), (320, 160504), (512, 100315), (640, 80252), (1280, 40126), (2560, 20063)]