43540940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{257}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 94403232

約数和(自身を除く): 50862292

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 197, 215, 257, 394, 430, 514, 788, 860, 985, 1028, 1285, 1970, 2570, 3940, 5140, 8471, 11051, 16942, 22102, 33884, 42355, 44204, 50629, 55255, 84710, 101258, 110510, 169420, 202516, 221020, 253145, 506290, 1012580, 2177047, 4354094, 8708188, 10885235, 21770470, 43540940]

約数ペア:

[(1, 43540940), (2, 21770470), (4, 10885235), (5, 8708188), (10, 4354094), (20, 2177047), (43, 1012580), (86, 506290), (172, 253145), (197, 221020), (215, 202516), (257, 169420), (394, 110510), (430, 101258), (514, 84710), (788, 55255), (860, 50629), (985, 44204), (1028, 42355), (1285, 33884), (1970, 22102), (2570, 16942), (3940, 11051), (5140, 8471)]