20429300

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{4751}}^1$

素因数の和:4808

約数の個数: 36

約数和(自身を含む): 45372096

約数和(自身を除く): 24942796

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 860, 1075, 2150, 4300, 4751, 9502, 19004, 23755, 47510, 95020, 118775, 204293, 237550, 408586, 475100, 817172, 1021465, 2042930, 4085860, 5107325, 10214650, 20429300]

約数ペア:

[(1, 20429300), (2, 10214650), (4, 5107325), (5, 4085860), (10, 2042930), (20, 1021465), (25, 817172), (43, 475100), (50, 408586), (86, 237550), (100, 204293), (172, 118775), (215, 95020), (430, 47510), (860, 23755), (1075, 19004), (2150, 9502), (4300, 4751)]