20564750

素因数分解:

$2^1\times 5^3\times {\mathrm{43}}^1\times {\mathrm{1913}}^1$

素因数の和:1973

約数の個数: 32

約数和(自身を含む): 39413088

約数和(自身を除く): 18848338

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 125, 215, 250, 430, 1075, 1913, 2150, 3826, 5375, 9565, 10750, 19130, 47825, 82259, 95650, 164518, 239125, 411295, 478250, 822590, 2056475, 4112950, 10282375, 20564750]

約数ペア:

[(1, 20564750), (2, 10282375), (5, 4112950), (10, 2056475), (25, 822590), (43, 478250), (50, 411295), (86, 239125), (125, 164518), (215, 95650), (250, 82259), (430, 47825), (1075, 19130), (1913, 10750), (2150, 9565), (3826, 5375)]