158019440

素因数分解:

$2^4\times 5^1\times {\mathrm{1975243}}^1$

素因数の和:1975256

約数の個数: 20

約数和(自身を含む): 367395384

約数和(自身を除く): 209375944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1975243, 3950486, 7900972, 9876215, 15801944, 19752430, 31603888, 39504860, 79009720, 158019440]

約数ペア:

[(1, 158019440), (2, 79009720), (4, 39504860), (5, 31603888), (8, 19752430), (10, 15801944), (16, 9876215), (20, 7900972), (40, 3950486), (80, 1975243)]