20382080

素因数分解:

$2^7\times 5^1\times {\mathrm{31847}}^1$

素因数の和:31866

約数の個数: 32

約数和(自身を含む): 48727440

約数和(自身を除く): 28345360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 31847, 63694, 127388, 159235, 254776, 318470, 509552, 636940, 1019104, 1273880, 2038208, 2547760, 4076416, 5095520, 10191040, 20382080]

約数ペア:

[(1, 20382080), (2, 10191040), (4, 5095520), (5, 4076416), (8, 2547760), (10, 2038208), (16, 1273880), (20, 1019104), (32, 636940), (40, 509552), (64, 318470), (80, 254776), (128, 159235), (160, 127388), (320, 63694), (640, 31847)]