211301140

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{277}}^1\times {\mathrm{887}}^1$

素因数の和:1216

約数の個数: 48

約数和(自身を含む): 456204672

約数和(自身を除く): 244903532

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 277, 430, 554, 860, 887, 1108, 1385, 1774, 2770, 3548, 4435, 5540, 8870, 11911, 17740, 23822, 38141, 47644, 59555, 76282, 119110, 152564, 190705, 238220, 245699, 381410, 491398, 762820, 982796, 1228495, 2456990, 4913980, 10565057, 21130114, 42260228, 52825285, 105650570, 211301140]

約数ペア:

[(1, 211301140), (2, 105650570), (4, 52825285), (5, 42260228), (10, 21130114), (20, 10565057), (43, 4913980), (86, 2456990), (172, 1228495), (215, 982796), (277, 762820), (430, 491398), (554, 381410), (860, 245699), (887, 238220), (1108, 190705), (1385, 152564), (1774, 119110), (2770, 76282), (3548, 59555), (4435, 47644), (5540, 38141), (8870, 23822), (11911, 17740)]